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		<h1>Bài tập về gương phẳng</h1>
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			<li>Thứ năm - 15/10/2020 09:21</li>
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			Bài 1:  Hai gương phẳng quay mặt phản xạ vào nhau và hợp với nhau một góc
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<span style="font-size:11pt"><span style="line-height:normal"><span style="text-autospace:none"><span style="font-family:Calibri,sans-serif"><b><span style="font-size:14.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">B<span style="letter-spacing:.05pt">à</span>i <span style="letter-spacing:.05pt">3</span>: </span></span></b><span style="font-size:14.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="letter-spacing:-.05pt">H</span></span></span><span style="font-size:14.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">ai <span style="letter-spacing:.05pt">g</span><span style="letter-spacing:-.05pt">ư</span><span style="letter-spacing:-.1pt">ơ</span><span style="letter-spacing:.05pt">n</span>g <span style="letter-spacing:.05pt">p</span><span style="letter-spacing:-.05pt">h</span>ẳ<span style="letter-spacing:-.05pt">n</span>g<span style="letter-spacing:.05pt"> G</span></span></span><span style="font-size:9.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="position:relative"><span style="top:1.5pt">1 </span></span></span></span><span style="font-size:14.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="letter-spacing:.05pt">v</span></span></span><span style="font-size:14.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">à <span style="letter-spacing:-.05pt">G</span></span></span><span style="font-size:9.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="position:relative"><span style="top:1.5pt">2 </span></span></span></span><span style="font-size:14.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="letter-spacing:-.05pt">q</span></span></span><span style="font-size:14.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="letter-spacing:.05pt">u</span></span></span><span style="font-size:14.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">ay mặt <span style="letter-spacing:-.1pt">p</span><span style="letter-spacing:.05pt">h</span><span style="letter-spacing:-.1pt">ả</span>n <span style="letter-spacing:-.1pt">x</span>ạ v<span style="letter-spacing:-.1pt">à</span>o <span style="letter-spacing:-.1pt">v</span>ới <span style="letter-spacing:.05pt">n</span><span style="letter-spacing:-.05pt">h</span>au <span style="letter-spacing:-.1pt">v</span>à t<span style="letter-spacing:-.1pt">ạ</span>o <span style="letter-spacing:-.1pt">t</span><span style="letter-spacing:.05pt">h</span><span style="letter-spacing:-.1pt">à</span><span style="letter-spacing:.05pt">n</span>h <span style="letter-spacing:-.25pt">m</span><span style="letter-spacing:.05pt">ộ</span>t <span style="letter-spacing:-.1pt">g</span><span style="letter-spacing:.05pt">ó</span>c</span></span></span></span></span></span><br  />
<span style="font-size:11pt"><span style="line-height:15.65pt"><span style="text-autospace:none"><span style="font-family:Calibri,sans-serif"><span style="font-size:14.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="letter-spacing:.05pt">6</span></span></span><span style="font-size:14.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="letter-spacing:-.05pt">0</span></span></span><span style="font-size:9.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="position:relative"><span style="top:-5.0pt"><span style="letter-spacing:.05pt">0</span></span></span></span></span><span style="font-size:14.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">. M<span style="letter-spacing:-.05pt">ộ</span>t <span style="letter-spacing:-.1pt">đ</span><span style="letter-spacing:.05pt">i</span>ểm S <span style="letter-spacing:.05pt">n</span><span style="letter-spacing:.1pt">ằ</span>m <span style="letter-spacing:.05pt">t</span>r<span style="letter-spacing:-.05pt">on</span>g <span style="letter-spacing:-.1pt">k</span><span style="letter-spacing:-.05pt">h</span><span style="letter-spacing:.05pt">o</span>ả<span style="letter-spacing:-.05pt">n</span>g <span style="letter-spacing:.05pt">h</span>ai <span style="letter-spacing:.05pt">g</span><span style="letter-spacing:-.05pt">ư</span><span style="letter-spacing:-.1pt">ơ</span><span style="letter-spacing:.05pt">ng</span>.</span></span></span></span></span></span><br  />
<span style="font-size:11pt"><span style="line-height:normal"><span style="text-autospace:none"><span style="font-family:Calibri,sans-serif"><span style="font-size:14.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">a.<span style="letter-spacing:-.05pt"> H</span><span style="letter-spacing:.1pt">ã</span>y nêu cá<span style="letter-spacing:-.15pt">c</span>h <span style="letter-spacing:-.1pt">v</span>ẽ <span style="letter-spacing:-.1pt">đ</span><span style="letter-spacing:-.05pt">ư</span>ờ<span style="letter-spacing:.05pt">n</span>g <span style="letter-spacing:.05pt">đ</span>i c<span style="letter-spacing:.05pt">ủ</span>a <span style="letter-spacing:.05pt">t</span><span style="letter-spacing:-.05pt">i</span>a s<span style="letter-spacing:-.1pt">á</span><span style="letter-spacing:-.05pt">n</span>g phát ra <span style="letter-spacing:.05pt">t</span>ừ S<span style="letter-spacing:-.05pt"> p</span><span style="letter-spacing:.05pt">h</span>ản <span style="letter-spacing:.05pt">x</span>ạ <span style="letter-spacing:-.05pt">l</span>ần lư<span style="letter-spacing:-.15pt">ợ</span>t <span style="letter-spacing:-.1pt">q</span><span style="letter-spacing:.05pt">u</span>a <span style="letter-spacing:.25pt">G</span></span></span><span style="font-size:9.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="position:relative"><span style="top:1.5pt"><span style="letter-spacing:.05pt">1</span></span></span></span></span><span style="font-size:14.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">,<span style="letter-spacing:-.05pt"> G</span></span></span><span style="font-size:9.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="position:relative"><span style="top:1.5pt">2</span></span></span></span></span></span></span></span><br  />
<span style="font-size:11pt"><span style="line-height:15.65pt"><span style="text-autospace:none"><span style="font-family:Calibri,sans-serif"><span style="font-size:14.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">r<span style="letter-spacing:.05pt">ồ</span>i <span style="letter-spacing:-.05pt">q</span><span style="letter-spacing:.05pt">u</span>ay trở về S.</span></span></span></span></span></span><br  />
<span style="font-size:11pt"><span style="line-height:15.8pt"><span style="text-autospace:none"><span style="font-family:Calibri,sans-serif"><span style="font-size:14.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="position:relative"><span style="top:.5pt"><span style="letter-spacing:.05pt">b</span></span></span></span></span><span style="font-size:14.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="position:relative"><span style="top:.5pt">.<span style="letter-spacing:-.05pt"> T</span><span style="letter-spacing:.05pt">í</span><span style="letter-spacing:-.05pt">n</span>h <span style="letter-spacing:-.1pt">g</span><span style="letter-spacing:.05pt">ó</span>c <span style="letter-spacing:.05pt">t</span><span style="letter-spacing:-.1pt">ạ</span>o b<span style="letter-spacing:-.05pt">ở</span>i <span style="letter-spacing:-.1pt">t</span><span style="letter-spacing:-.05pt">i</span>a t<span style="letter-spacing:-.05pt">ớ</span>i <span style="letter-spacing:-.1pt">x</span><span style="letter-spacing:.05pt">u</span>ất <span style="letter-spacing:-.05pt">p</span><span style="letter-spacing:.05pt">h</span>át <span style="letter-spacing:.05pt">t</span>ừ S<span style="letter-spacing:-.05pt"> v</span>à t<span style="letter-spacing:.05pt">i</span>a <span style="letter-spacing:-.05pt">p</span><span style="letter-spacing:.05pt">h</span>ản <span style="letter-spacing:.05pt">x</span>ạ <span style="letter-spacing:.05pt">q</span><span style="letter-spacing:-.05pt">u</span>a S.</span></span></span></span></span></span></span></span><br  />
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<div class="WordSection1"><span style="font-size:11pt"><span style="line-height:16.1pt"><span style="text-autospace:none"><span style="font-family:Calibri,sans-serif"><span style="font-size:14.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="letter-spacing:-.05pt">N</span></span></span><span style="font-size:14.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="letter-spacing:.05pt">h</span></span></span><span style="font-size:14.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">ư <span style="letter-spacing:.05pt">v</span>ậy : <span style="letter-spacing:-.05pt">g</span><span style="letter-spacing:.05pt">ó</span>c <span style="letter-spacing:.05pt">h</span>ợp <span style="letter-spacing:-.05pt">b</span>ởi <span style="letter-spacing:.05pt">ti</span>a <span style="letter-spacing:.05pt">t</span><span style="letter-spacing:-.1pt">ớ</span>i <span style="letter-spacing:.05pt">v</span>à <span style="letter-spacing:-.05pt">t</span><span style="letter-spacing:.05pt">i</span>a <span style="letter-spacing:-.05pt">p</span><span style="letter-spacing:.05pt">h</span><span style="letter-spacing:-.1pt">ả</span>n <span style="letter-spacing:.05pt">x</span>ạ <span style="letter-spacing:-.1pt">c</span><span style="letter-spacing:.05pt">u</span><span style="letter-spacing:-.05pt">ố</span>i <span style="letter-spacing:-.1pt">c</span><span style="letter-spacing:-.05pt">ù</span><span style="letter-spacing:.05pt">n</span>g <span style="letter-spacing:.05pt">l</span>à <span style="letter-spacing:-.05pt">6</span><span style="letter-spacing:.55pt">0</span></span></span><span style="font-size:9.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="position:relative"><span style="top:-5.0pt"><span style="letter-spacing:.05pt">0</span></span></span></span></span><span style="font-size:14.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">. (<span style="letter-spacing:.05pt">b</span><span style="letter-spacing:-.1pt">à</span>i <span style="letter-spacing:-.05pt">n</span>ày <span style="letter-spacing:.05pt">v</span>ẽ <span style="letter-spacing:.05pt">l</span><span style="letter-spacing:-.1pt">ạ</span>i <span style="letter-spacing:-.05pt">hì</span><span style="letter-spacing:.05pt">n</span>h <span style="letter-spacing:-.05pt">b</span>ên <span style="letter-spacing:.05pt">n</span><span style="letter-spacing:-.05pt">g</span><span style="letter-spacing:.05pt">o</span><span style="letter-spacing:-.1pt">à</span>i để c<span style="letter-spacing:.05pt">h</span><span style="letter-spacing:-.15pt">ứ</span><span style="letter-spacing:.05pt">n</span>g <span style="letter-spacing:-.25pt">m</span><span style="letter-spacing:.05pt">in</span>h c<span style="letter-spacing:-.05pt">h</span>o rõ <span style="letter-spacing:.25pt">h</span><span style="letter-spacing:-.1pt">ơ</span><span style="letter-spacing:.05pt">n</span>).</span></span></span></span></span></span><br  />
<span style="font-size:11pt"><span style="line-height:15.9pt"><span style="text-autospace:none"><span style="font-family:Calibri,sans-serif"><b><span style="font-size:14.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">B<span style="letter-spacing:.05pt">à</span>i <span style="letter-spacing: 0.133333px;">3</span>: &nbsp;</span></span></b><span style="font-size:14.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">M<span style="letter-spacing:-.05pt">ộ</span>t <span style="letter-spacing:-.05pt">n</span><span style="letter-spacing:.05pt">g</span><span style="letter-spacing:-.05pt">ư</span>ời <span style="letter-spacing:-.1pt">c</span>ao <span style="letter-spacing:.05pt">1</span><span style="letter-spacing:-.15pt">,</span><span style="letter-spacing:.05pt">6</span>m <span style="letter-spacing:.05pt">đ</span><span style="letter-spacing:-.05pt">ứ</span><span style="letter-spacing:.05pt">n</span>g <span style="letter-spacing:.05pt">đ</span><span style="letter-spacing:-.05pt">ố</span>i <span style="letter-spacing:-.05pt">di</span>ện <span style="letter-spacing:-.05pt">v</span>ới <span style="letter-spacing:-.25pt">m</span><span style="letter-spacing:.05pt">ộ</span>t <span style="letter-spacing:.05pt">g</span><span style="letter-spacing:-.05pt">ư</span>ơ<span style="letter-spacing:-.05pt">n</span>g <span style="letter-spacing:-.05pt">ph</span>ẳ<span style="letter-spacing:-.05pt">n</span>g <span style="letter-spacing:.05pt">h</span><span style="letter-spacing:-.05pt">ìn</span>h c<span style="letter-spacing:.05pt">h</span>ữ <span style="letter-spacing:-.05pt">n</span><span style="letter-spacing:.05pt">h</span><span style="letter-spacing:-.1pt">ậ</span>t <span style="letter-spacing:-.05pt">đư</span>ợc</span></span></span></span></span></span><br  />
<span style="font-size:11pt"><span style="line-height:16.1pt"><span style="text-autospace:none"><span style="font-family:Calibri,sans-serif"><span style="font-size:14.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="letter-spacing:.05pt">t</span></span></span><span style="font-size:14.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">r<span style="letter-spacing:-.1pt">e</span>o <span style="letter-spacing:-.1pt">t</span><span style="letter-spacing:.1pt">h</span><span style="letter-spacing:-.1pt">ẳ</span><span style="letter-spacing:.05pt">n</span>g <span style="letter-spacing:.05pt">đ</span><span style="letter-spacing:-.05pt">ứn</span><span style="letter-spacing:.05pt">g</span>. M<span style="letter-spacing:-.1pt">ắ</span>t<span style="letter-spacing:.05pt"> ng</span><span style="letter-spacing:-.05pt">ư</span><span style="letter-spacing:-.1pt">ờ</span>i <span style="letter-spacing:-.05pt">đ</span>ó c<span style="letter-spacing:-.1pt">á</span>ch <span style="letter-spacing:.05pt">đ</span><span style="letter-spacing:-.05pt">ỉn</span>h <span style="letter-spacing:-.05pt">đ</span>ầu <span style="letter-spacing:-.05pt">1</span>0 cm .</span></span></span></span></span></span><br  />
<span style="font-size:11pt"><span style="line-height:16.1pt"><span style="text-autospace:none"><span style="font-family:Calibri,sans-serif"><span style="font-size:14.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="letter-spacing:.05pt">1</span></span></span><span style="font-size:14.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">. &nbsp;Mép <span style="letter-spacing:.05pt">d</span><span style="letter-spacing:-.05pt">ư</span>ới <span style="letter-spacing:-.1pt">c</span><span style="letter-spacing:.05pt">ủ</span>a <span style="letter-spacing:.05pt">g</span><span style="letter-spacing:-.05pt">ư</span><span style="letter-spacing:-.1pt">ơ</span><span style="letter-spacing:-.05pt">n</span>g cách <span style="letter-spacing:-.25pt">m</span>ặt <span style="letter-spacing:.05pt">đ</span>ất <span style="letter-spacing:-.05pt">í</span>t <span style="letter-spacing:-.05pt">n</span><span style="letter-spacing:.1pt">h</span><span style="letter-spacing:-.1pt">ấ</span>t <span style="letter-spacing:.05pt">b</span>ao <span style="letter-spacing:.05pt">n</span><span style="letter-spacing:-.05pt">h</span><span style="letter-spacing:.1pt">i</span><span style="letter-spacing:-.1pt">ê</span>u <span style="letter-spacing:.05pt">đ</span>ể <span style="letter-spacing:.05pt">ng</span><span style="letter-spacing:-.15pt">ư</span>ời <span style="letter-spacing:.05pt">đ</span>ó <span style="letter-spacing:.05pt">t</span><span style="letter-spacing:-.05pt">h</span>ấy ả<span style="letter-spacing:.05pt">n</span>h c<span style="letter-spacing:.05pt">ủa</span></span></span></span></span></span></span><br  />
<span style="font-size:11pt"><span style="line-height:normal"><span style="text-autospace:none"><span style="font-family:Calibri,sans-serif"><span style="font-size:14.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">c<span style="letter-spacing:.05pt">h</span><span style="letter-spacing:-.1pt">â</span>n t<span style="letter-spacing:-.1pt">r</span><span style="letter-spacing:-.05pt">o</span><span style="letter-spacing:.05pt">n</span>g <span style="letter-spacing:.1pt">g</span><span style="letter-spacing:-.05pt">ư</span><span style="letter-spacing:-.1pt">ơ</span><span style="letter-spacing:.05pt">n</span>g ?</span></span></span></span></span></span><br  />
<span style="font-size:11pt"><span style="line-height:16.1pt"><span style="text-autospace:none"><span style="font-family:Calibri,sans-serif"><span style="font-size:14.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="letter-spacing:.05pt">2</span></span></span><span style="font-size:14.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">. &nbsp;<span style="letter-spacing:-.05pt">T</span><span style="letter-spacing:.05pt">ì</span>m c<span style="letter-spacing:.05pt">hi</span>ều <span style="letter-spacing:-.1pt">c</span>ao t<span style="letter-spacing:.05pt">ố</span>i <span style="letter-spacing:-.05pt">t</span><span style="letter-spacing:.05pt">h</span><span style="letter-spacing:-.05pt">i</span>ểu <span style="letter-spacing:-.1pt">c</span><span style="letter-spacing:.05pt">ủ</span>a <span style="letter-spacing:.05pt">g</span><span style="letter-spacing:-.05pt">ư</span><span style="letter-spacing:-.1pt">ơ</span><span style="letter-spacing:.05pt">n</span>g <span style="letter-spacing:.05pt">đ</span>ể <span style="letter-spacing:-.05pt">n</span><span style="letter-spacing:.1pt">g</span><span style="letter-spacing:-.05pt">ư</span>ời <span style="letter-spacing:.05pt">đ</span>ó <span style="letter-spacing:-.05pt">n</span><span style="letter-spacing:.05pt">h</span><span style="letter-spacing:-.05pt">ì</span>n <span style="letter-spacing:.05pt">t</span><span style="letter-spacing:-.05pt">h</span>ấy <span style="letter-spacing:.05pt">to</span><span style="letter-spacing:-.1pt">à</span>n <span style="letter-spacing:.05pt">th</span>ể ả<span style="letter-spacing:-.05pt">n</span>h <span style="letter-spacing:-.1pt">c</span><span style="letter-spacing:.05pt">ủ</span>a <span style="letter-spacing:-.25pt">m</span><span style="letter-spacing:.05pt">ì</span><span style="letter-spacing:-.05pt">n</span>h <span style="letter-spacing:.05pt">t</span>r<span style="letter-spacing:-.05pt">on</span>g<span style="letter-spacing:.05pt"> g</span><span style="letter-spacing:-.05pt">ư</span><span style="letter-spacing:-.1pt">ơ</span><span style="letter-spacing:-.05pt">n</span><span style="letter-spacing:.05pt">g</span>.</span></span></span></span></span></span><br  />
<span style="font-size:11pt"><span style="line-height:16.1pt"><span style="text-autospace:none"><span style="font-family:Calibri,sans-serif"><span style="font-size:14.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="letter-spacing:.05pt">3</span></span></span><span style="font-size:14.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">. &nbsp;Các <span style="letter-spacing:.05pt">k</span><span style="letter-spacing:-.1pt">ế</span>t <span style="letter-spacing:-.05pt">q</span><span style="letter-spacing:.05pt">u</span>ả <span style="letter-spacing:.05pt">t</span>r<span style="letter-spacing:-.1pt">ê</span>n có <span style="letter-spacing:-.05pt">p</span><span style="letter-spacing:.05pt">h</span>ụ <span style="letter-spacing:.05pt">t</span><span style="letter-spacing:-.05pt">hu</span><span style="letter-spacing:.05pt">ộ</span>c <span style="letter-spacing:-.05pt">v</span>ào <span style="letter-spacing:.05pt">k</span><span style="letter-spacing:-.05pt">h</span><span style="letter-spacing:.05pt">o</span><span style="letter-spacing:-.1pt">ả</span><span style="letter-spacing:-.05pt">n</span>g cách <span style="letter-spacing:.05pt">t</span>ừ<span style="letter-spacing:-.05pt"> n</span><span style="letter-spacing:.05pt">g</span><span style="letter-spacing:-.05pt">ư</span>ời <span style="letter-spacing:.05pt">đ</span>ó <span style="letter-spacing:.05pt">t</span><span style="letter-spacing:-.1pt">ớ</span>i <span style="letter-spacing:.1pt">g</span><span style="letter-spacing:-.05pt">ư</span>ơ<span style="letter-spacing:-.05pt">n</span>g <span style="letter-spacing:.05pt">k</span>h<span style="letter-spacing:-.05pt">ô</span><span style="letter-spacing:.05pt">n</span>g ? <span style="letter-spacing:.1pt">v</span>ì <span style="letter-spacing:.05pt">s</span>ao ?</span></span></span></span></span></span><br  />
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<span style="font-size:11pt"><span style="line-height:16.1pt"><span style="text-autospace:none"><span style="font-family:Calibri,sans-serif"><b><span style="font-size:14.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">Bài </span></span></b><b><span style="font-size:14.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="letter-spacing:.05pt">5</span></span></span></b><b><span style="font-size:14.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">: </span></span></b><span style="font-size:14.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="letter-spacing:.05pt">Á</span></span></span><span style="font-size:14.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">nh <span style="letter-spacing:.05pt">sá</span>ng M<span style="letter-spacing:.05pt">ặ</span>t Trời <span style="letter-spacing:.05pt">c</span>h<span style="letter-spacing:-.05pt">i</span><span style="letter-spacing:.05pt">ế</span>u x<span style="letter-spacing:-.05pt">u</span><span style="letter-spacing:.1pt">ố</span>ng t<span style="letter-spacing:.05pt">ạ</span>o <span style="letter-spacing:.1pt">v</span>ới <span style="letter-spacing:.05pt">mặ</span>t </span></span><span style="font-size:14.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">đất g<span style="letter-spacing:-.05pt">ó</span>c 6<span style="letter-spacing:.15pt">0</span></span></span><span style="font-size:9.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="position:relative"><span style="top:-5.0pt"><span style="letter-spacing:.05pt">0</span></span></span></span></span><span style="font-size:14.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">. P<span style="letter-spacing:-.05pt">h</span><span style="letter-spacing:.05pt">ả</span>i </span></span><span style="font-size:14.0pt"><span style="font-family:&#039;Times New Roman&#039;,serif">đặt <span style="letter-spacing:.05pt">m</span>ột gươ<span style="letter-spacing:-.05pt">n</span>g <span style="letter-spacing:.05pt">p</span>hẳng <span style="letter-spacing:.1pt">n</span>hư t<span style="letter-spacing:-.05pt">h</span>ế <span style="letter-spacing:-.05pt">n</span><span style="letter-spacing:.05pt">à</span>o để <span style="letter-spacing:.1pt">c</span>h<span style="letter-spacing:-.05pt">ù</span>m tia p<span style="letter-spacing:-.05pt">h</span><span style="letter-spacing:.15pt">ả</span>n xạ <span style="letter-spacing:.1pt">q</span>ua gư<span style="letter-spacing:.1pt">ơ</span>ng <span style="letter-spacing:.05pt">c</span>ó <span style="letter-spacing:.1pt">t</span>hể <span style="letter-spacing:.1pt">c</span>h<span style="letter-spacing:-.05pt">i</span><span style="letter-spacing:.05pt">ế</span>u <span style="letter-spacing:.1pt">v</span>u<span style="letter-spacing:-.05pt">ô</span><span style="letter-spacing:.1pt">n</span>g <span style="letter-spacing:.1pt">g</span>óc v<span style="letter-spacing:.05pt">ớ</span>i <span style="letter-spacing:.05pt">mặ</span>t <span style="letter-spacing:-.05pt">đ</span><span style="letter-spacing:.05pt">ấ</span>t? <span style="letter-spacing:.05pt">V</span>ẽ <span style="letter-spacing:-.05pt">h</span>ì<span style="letter-spacing:-.05pt">n</span>h?</span></span></span></span></span></span><br  />
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