已知a=log2^6.b=log3^6.求a+b/ab
题目
已知a=log2^6.b=log3^6.求a+b/ab
答案
a=log2^6=6log2
b=log3^6=6log3
(a+b)/ab
=(6log2+6log3)/36log2*log3
=6log6/36log2*log3
=log6/6log2*log3
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