Q1 of 20 Page 1

Write fog, if f: R → R and g: R → R are given by f(x) = 8x3 and g(x) = x1/3. [CBSE 2011]

Given: f(x) = 8x3 and g(x) = x1/3


fog = f(g(x)) = f(x1/3) = 8 (x1/3)3


f(g(x)) = 8x


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