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Prove that f:RrightarrowR such that f(x)...

Prove that `f:RrightarrowR` such that `f(x)=frac[2x^2][x^2+1]` is neither one-one nor onto function.

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  12. If f(x) = a In x + bx^2 + x has extreme values at x= - 1 and x = 2 the...

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