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Let A, B, C in N and a function f:A to B...

Let `A, B, C in N` and a function `f:A to B` be defined by `f(x)=2x+1` and `g: B to C` be defined by `g(x)=x^(2)`. Find the range of fog and gof.

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The correct Answer is:
`(2x + 1)^(2) , x in N)`
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