Q. 185.0( 2 Votes )

Let f(x) = 8x<sup

Answer :

To find: g o f and f o g


Formula used: (i) f o g = f(g(x))


(ii) g o f = g(f(x))


Given: (i) f(x) = 8x3


(ii) g(x) = x1/3


We have,


g o f = g(f(x)) = g(8x3)


g o f = = 2x


f o g = f(g(x)) = f(x1/3)


f o g = = 8x


Ans) g o f = 2x and f o g = 8x


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