若a的m次方=3,a的n次方=2 则a的2m-n次方=多少

2025-12-17 09:11:20
推荐回答(2个)
回答1:

若a的m次方=3,a的n次方=2 则a的2m-n次方=多少
a^(2m-n)
=a^2m/a^n
=(a^m)^2/a^n
=3^2/2
=9/2

回答2:

=9/2=4.5.................