Question

Please help, walk me through this?
In the expression ( b^m)^n=1, which of the
following must be FALSE for b cannot equal 1 :
a. mn=1
b. m=n
c. m+n=0
d. m^n=1
e. b^(m-n)=1

Answer 1

Start by simplifying:
\[(b ^{m})^{n}=b ^{mn}\]

Answer 2

Since b is not equal to 1 mn must be equal to zero. Test option.

Answer 3

is it a?