Mark (√) against the correct answer in the following: If f(x) = 8x3 – InterviewSolution

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Mark (√) against the correct answer in the following: If f(x) = 8x3 and g(x) = x1/3 then (g o f) (x) = ? A. x B. 2x C. \(\frac{x}{2}\)D. 3x2

Answer»

Correct Answer is (B) 2x

f(x) = 8x³

g(x) = x^1/3

\(\Rightarrow (gof)(x)=(f(x))^{1/3}\)\(=(8x^3)^{1/3}=2x\)

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