计算(log5^3+log25^3)(log9^5+log27^5)

分类: 作业答案 • 2022-02-20 17:47:39

问题描述：

答

15(log5

答

(log5^3+log25^3)(log9^5+log27^5）
=(3log5+3log5^2)(5log3^2+5log3^3)
=(9log5)*(25log3)
=225log15