(log4的三次方+log8的三次方)(log3的2次方-log9的二次方)_数学解答

(log4的三次方+log8的三次方)(log3的2次方-log9的二次方)

人气：225 ℃　时间：2019-09-05 07:38:55

解答

=3(log4+log8)*2(log3-log9)
=3(log32)*2(log1/3)
=15(log2)*(-2)(log3)
=-30(log2*log3)