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log816+log23*log32+23√2*(1.5)^1/3*6√81=?
题目详情
log8 16+log2 3*log3 2+2 3√2*(1.5)^1/3*6√81=?
▼优质解答
答案和解析
log8 16+log2 3*log3 2+2
=lg16/lg8+lg3/lg2*lg2/lg3+2
=4lg2/3lg2+3
=13/3
3√2*(1.5)^1/3*6√81
=2^(1/3)*(3/2)^1/3*81^(1/6)
=2^(1/3)*(3^(1/3)/2(^1/3)*3^(2/3)
=3
=lg16/lg8+lg3/lg2*lg2/lg3+2
=4lg2/3lg2+3
=13/3
3√2*(1.5)^1/3*6√81
=2^(1/3)*(3/2)^1/3*81^(1/6)
=2^(1/3)*(3^(1/3)/2(^1/3)*3^(2/3)
=3
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