Question

Find f^3(x) for f(x)=4/x^2

Answer 1

f³(x) = 64/x⁶

Explanation:

f³(x) = (f(x))³ = (4/x²)³ = 4³/(x²)³

f³(x) = 64/x⁶

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The applicable rules of exponents are ...

(a/b)^c = (a^c)/(b^c)

(a^b)^c = a^(bc)