Let $f: (-1, 1) \to R$ be a differentiable function with $f(0) = -1$ and $f'(0) = 1$. Let $g(x) = [f(2f(x) + 2)]^2$. Then $g'(0) = $

  • A
    $-4$
  • B
    $0$
  • C
    $-2$
  • D
    $4$

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Differentiate the function with respect to $x$: $\frac{\cos^{-1}(\frac{x}{2})}{\sqrt{2x+7}}$,where $-2 < x < 2$.

If $f(x)=x^{n}$,where $n$ is a non-negative integer,then the values of $n$ for which $f^{\prime}(\alpha+\beta)=f^{\prime}(\alpha)+f^{\prime}(\beta)$ for all $\alpha, \beta > 0$ is:

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