જો $x \geq 1$ હોય,તો $2 \tan^{-1} x + \sin^{-1} (\frac{2x}{1+x^2})$ ની કિંમત શું થાય?

  • A
    $4 \tan^{-1} x$
  • B
    $0$
  • C
    $\frac{2 \pi}{3}$
  • D
    $\pi$

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જો $\sin ^{-1}\left(x-\frac{x^2}{2}+\frac{x^3}{4}-\ldots \infty\right) + \cos ^{-1}\left(x^2-\frac{x^4}{2}+\frac{x^6}{4}-\ldots \infty\right)=\frac{\pi}{2}$ અને $0 < x < \sqrt{2}$ હોય,તો $x$ ની કિંમત શોધો.

$\sin \left\{ {{\sin }^{ - 1}}\frac{1}{2} + {{\cos }^{ - 1}}\frac{1}{2} \right\} = $

ધારો કે $S = \{x \in R : 0 < x < 1 \text{ અને } 2 \tan^{-1}\left(\frac{1-x}{1+x}\right) = \cos^{-1}\left(\frac{1-x^2}{1+x^2}\right)\}$. જો $n(S)$ એ $S$ માં રહેલા ઘટકોની સંખ્યા દર્શાવતું હોય,તો:

$\frac{d}{dx} \left[ \tan^{-1} \left( \frac{a - x}{1 + ax} \right) \right] = $

જો $\alpha \leq 2 \sin^{-1} x + \cos^{-1} x \leq \beta$ હોય,તો

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