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数学
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设矩形的长与宽分别为a,b求S
(1)a=根号8,b=根号12
(2)a=根号2倍根号50,b=3倍根号32
人气:294 ℃ 时间:2020-05-08 02:18:43
解答
s=ab=√8*√2=4
s=ab=√2√50*3√32=10*12√2=120√2
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