જો $r = [2\phi + \cos^2(2\phi + \pi/4)]^{1/2}$ હોય,તો $\phi = \pi/4$ આગળ વિકલિત $dr/d\phi$ નું મૂલ્ય શું છે?

  • A
    $2\left( \frac{1}{\pi + 1} \right)^{1/2}$
  • B
    $2\left( \frac{2}{\pi + 1} \right)^{-1/2}$
  • C
    $2\left( \frac{1}{\pi + 1} \right)^{-1/2}$
  • D
    $2\left( \frac{2}{\pi + 1} \right)^{1/2}$

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જો $y = \tan(\cos^{-1} x)$ હોય, તો $\frac{dy}{dx}$ ની કિંમત શોધો.

જો $f(x) = x + 2$ હોય,તો $x = 4$ આગળ $f'(f(x))$ ની કિંમત શું થાય?

જો $f(x) = \cos^{-1}\left[ \frac{1 - (\log x)^2}{1 + (\log x)^2} \right]$ હોય,તો $f'(e)$ ની કિંમત શોધો.

જો $y=\log \left\{\left(\frac{1+x}{1-x}\right)^{1 / 4}\right\}-\frac{1}{2} \tan ^{-1}(x)$ હોય,તો $\frac{d y}{d x}$ ની કિંમત શોધો.

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