Question

Answer to this question​

Answer 1

4^7/4^3 = 4^-2/4^(5n-1)

using a^m/a^n = a^(m-n)

4^(7-3) = 4^(-2-5n+1)

4^4 = 4^(-5n-1)

since base is equal i.e. 4.., equating power

4 = -5n-1

-5n = 5

n = -1

c) -1  is crct

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