જો $(\tan^{-1} x)^2 + (\cot^{-1} x)^2 = \frac{5\pi^2}{8}$ હોય, તો $x$ ની કિંમત કોના બરાબર છે...

  • A
    -$1$
  • B
    -$2$
  • C
    $1$
  • D
    $2$

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${(\sin ^{ - 1}}x)^3 + {(\cos ^{ - 1}}x)^3$ ની મહત્તમ અને ન્યૂનતમ કિંમત શોધો.

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જો કોઈ $x \in (-1, 1)$ માટે $\sin^{-1} x = \frac{\pi}{5}$ હોય,તો $\cos^{-1} x$ ની કિંમત શોધો.

જો $\tan ^{-1}x + \tan ^{-1}y + \tan ^{-1}z = \frac{\pi }{2}$ હોય,તો

જો $y = \tan^{-1} \left( \frac{4x}{1 + 5x^2} \right) + \tan^{-1} \left( \frac{2 + 3x}{3 - 2x} \right)$ હોય,તો $\frac{dy}{dx} = $

જો $\sin ^{-1} a=\alpha+\beta$ અને $\sin ^{-1} b=\alpha-\beta$ હોય,તો $\sin ^2 \alpha+\cos ^2 \beta=$ . . . . . . .

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