求(log2幂数3 +log4幂数3)(log3幂数2 +log9幂数4)
问题描述:
求(log2幂数3 +log4幂数3)(log3幂数2 +log9幂数4)
答
(log2幂数3 +log4幂数3)(log3幂数2 +log9幂数4)
=(log2幂数3 +1/2log2幂数3)(log3幂数2 +log3幂数2)
=3/2log2幂数3*2log3幂数2
=3