Question

Verify the following
{(7)^-1]^2 = 49​

Answer 1

{(7)^-1}^2=49

(If we multiply 7 by -1 as given in question

It will be -7)

(-7)^2

(here power of 7 is now 2 , so we will multiply 7 two times)

-7×-7 = 49

LHS=RHS