Question

已知4的m次方=8,16的n次方=6,求4的2m-4n+1的平方直

Answer 1

16^n=6

4^(2n)=6

4^(2m-4n+1)

=(4^m)^2×4/[4^(2n)]^2

=(8^2×4)/6^2

=256/36

=64/9