√(0.9乘以121/0.36乘以100)怎么算?就是根号下0.36乘以100分之0.9乘以121..
人气:417 ℃ 时间:2019-11-23 12:11:03
解答
√[(0.9×121/(0.36×100)]
=√[(3²/10×11²/6²)]
=3×11/6×√(10/10²)
=11/2×(√10)/10
=11√10/20嗯,是这样的
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