$\tan ^{-1}(-1)$ નું મુખ્ય મૂલ્ય શોધો.

  • A
    $-\frac{\pi}{6}$
  • B
    $\frac{\pi}{4}$
  • C
    $-\frac{\pi}{2}$
  • D
    $-\frac{\pi}{4}$

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જો $y = \sin^{-1} \left( \frac{2x}{1 + x^2} \right)$,જ્યાં $0 < x < 1$ અને $0 < y < \frac{\pi}{2}$ હોય,તો $\frac{dy}{dx} = $

$x$ ની કઈ કિંમત માટે $\sin(\cot^{-1}(1 + x)) = \cos(\tan^{-1}x)$ થાય?

$\sin ^{-1}\left(\sin \left(\frac{2 \pi}{3}\right)\right)$ નું મુખ્ય મૂલ્ય શોધો.

જો $2\cos^{-1}\sqrt{\frac{1+x}{2}} = \frac{\pi}{2}$ હોય,તો $x = $

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