જો $\alpha$ અને $\beta$ એ $x \in [-1, 1]$ માટે $f(x)=(\sin ^{-1} x)^2+(\cos ^{-1} x)^2$ ની ન્યૂનતમ અને મહત્તમ કિંમતો હોય,તો $8(\alpha+\beta)=$

  • A
    $\pi^2$
  • B
    $11 \pi^2$
  • C
    $9 \pi^2$
  • D
    $25 \pi^2$

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જો $0 \leq x \leq \frac{1}{2}$ હોય,તો $\tan \left[\sin ^{-1}\left\{\frac{x}{\sqrt{2}}+\frac{\sqrt{1-x^{2}}}{\sqrt{2}}\right\}-\sin ^{-1} x\right]$ ની કિંમત શોધો.

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

$\cos \left(\cos ^{-1}\left(-\frac{1}{4}\right)+\sin ^{-1}\left(-\frac{1}{4}\right)\right) = $ . . . . . . .

$2 \cos ^{-1} x = \sin ^{-1} \left( 2 x \sqrt{1 - x^2} \right)$ એ $x$ ની કઈ કિંમતો માટે સાચું છે?

$n \in N$ માટે,જો $\cot ^{-1} 3+\cot ^{-1} 4+\cot ^{-1} 5+\cot ^{-1} n=\frac{\pi}{4}$ હોય,તો $n$ ની કિંમત ......... છે.

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