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If f(x)=1+x^2 and [g(x)]=1+x^2-2x^3+x^4,...

If `f(x)=1+x^2` and `[g(x)]=1+x^2-2x^3+x^4, g(2)=2`, then

A

g(x) is one -one

B

g(2)=2

C

g(x)=x

D

none of these

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The correct Answer is:
B
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