已知a=log2^6.b=log3^6.求a+b/ab

问题描述:

已知a=log2^6.b=log3^6.求a+b/ab

a=log2^6=6log2
b=log3^6=6log3
(a+b)/ab
=(6log2+6log3)/36log2*log3
=6log6/36log2*log3
=log6/6log2*log3