Question

a^m×a^n = a^m+n. But why a^-2 × a^-2 or (a^-2)^2 = a^4 ? ​

Answer 1

Step-by-step explanation:

sorry ............

Answer 2

Answer:

a^m.a^n=a^mn

a^(m+n)=a^mn

m+n=mn

Let it be equation 1

Now

m(n-2)+n(m-2)

=mn-2m+mn-2n

=2mn-2(m+n)

And from equation 1 (m+n)=mn

=2mn-2mn

=0