2的2加log2底5次幂减2的log2底3次幂乘以log3底5次幂的值

问题描述:

2的2加log2底5次幂减2的log2底3次幂乘以log3底5次幂的值

2的(2+log2底5次幂)-(2的log2底3次幂)的log3底5次幂
=4×5-3的log3底5次幂
=20-5
=15