[数学题求助]已知3^2m=6,3^n=8,则3^4m-2n的值为?(4个答案选择)

2025-05-15 09:00:18
推荐回答(2个)
回答1:

A
3(4m-2n)=34m/32n=(32m)2/(3n)2=62/82=9/16

回答2:

=[(3^2m)^2]/[(3^n)^2]=6^2/8^2=A