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3^(y+1)=4^y 求y
人气:414 ℃ 时间:2020-03-20 13:49:12
解答
3^(y+1)=4^y
3^y*3=4^y
4^y/3^y=3
(4/3)^y=3
y=log3_(4/3)=log3_4 - log3_3=log3_4 - 1
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