计算:2log(2)3-log(2)9/8
问题描述:
计算:2log(2)3-log(2)9/8
答
2log(2)3-log(2)9/8
=log(2)3+log(2)3-log(2)9/8
=log(2)9/(9/8)
=log(2)8
=3
答
2log23-log2(9/8)=log29-log29+log28=3
答
原式=log(2)3²-log(2)3²/8
=log(2)(3²÷9/8)
=log(2)8
=3