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log3x=-3/4,logx3=-5/6,火速!log3x=-3/4logx3=-5/6logx27=3/4logx2=7/8均是求x,我要具体过程,
题目详情
log3x=-3/4,logx3=-5/6,火速!
log3x=-3/4
logx3=-5/6
logx27=3/4
logx2=7/8
均是求x,我要具体过程,
log3x=-3/4
logx3=-5/6
logx27=3/4
logx2=7/8
均是求x,我要具体过程,
▼优质解答
答案和解析
log3x=-3/4
3^(-3/4)=x
x=3^(-3/4)
logx3=-5/6
x^(-5/6)=3
[x^(-5/6)]^(-6/5)=3^(-6/5)
x=3^(-6/5)
logx27=3/4
x^(3/4)=27=3^3
x^(1/4)=3
[x^(1/4)]^4=3^4
x=81
logx2=7/8
x^(7/8)=2
[x^(7/8)]^(8/7)=2^(8/7)
x=2^^(8/7)
3^(-3/4)=x
x=3^(-3/4)
logx3=-5/6
x^(-5/6)=3
[x^(-5/6)]^(-6/5)=3^(-6/5)
x=3^(-6/5)
logx27=3/4
x^(3/4)=27=3^3
x^(1/4)=3
[x^(1/4)]^4=3^4
x=81
logx2=7/8
x^(7/8)=2
[x^(7/8)]^(8/7)=2^(8/7)
x=2^^(8/7)
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