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已知8.62=73.96,若x²=0.7396,则x的值等于( ) A.86.2
已知8.62=73.96,若x²=0.7396,则x的值等于( )
A.86.2 B.862 C.±0.862 D.±862
人气:138 ℃ 时间:2020-10-02 04:32:06
解答
c能否写个过程,谢谢8.62.=73.96,0.0802=0.7396.即x^2=0.7396|x|=0.862,x=土0.862
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