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若2x-5y+2=0,试求4^x乘以1/(32^y)的值
人气:493 ℃ 时间:2020-03-27 16:04:48
解答
2x-5y+2=0,
2x-5y=-2
4^x乘以1/(32^y)
=2^2x×1/2^(-5y)
=2^(2x-5y)
=2^(-2)
=1/4
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