九的以三为底二的对数的次方等于多少3^[log3(4)]为啥等于四

问题描述:

九的以三为底二的对数的次方等于多少
3^[log3(4)]为啥等于四

9^[log3(2)]
=(3^2)^[log3(2)]
=3^[2log3(2)]
=3^[log3(2^2)]
=3^[log3(4)]
=4