(1) lg5+lg20+(lg2)^2 (2)2^3+log2^5
问题描述:
(1) lg5+lg20+(lg2)^2 (2)2^3+log2^5
答
(1) lg5+lg20+(lg2)² =lg100+(lg2)²=2+(lg2)²
(2)log2^5的底数是多少?