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	<title>金太阳月百万联考C理科 &#8211; 答案星辰</title>
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		<title>2022届金太阳3月百万联考(4002C)理科数学答案</title>
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		<pubDate>Wed, 23 Mar 2022 15:30:38 +0000</pubDate>
		<dc:creator><![CDATA[yun]]></dc:creator>
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		<description><![CDATA[22.解：(1)由一t2+4=0及t&#62;0,得t=2, 此时t3一t=6,则B的坐标为(0,6). 由t3一t=0及t&#62;0,得t=1 此时一t2+4=3,则A的坐标为(3,0). 故&#124;AB&#124;=3√5. (2)由(1)知，线段OB的中点D的坐标为(0,3)， 则&#124;OD&#124;= [&#8230;]]]></description>
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