$\sin \left[3 \sin ^{-1}(0.4)\right] = \ldots$

  • A
    $0.466$
  • B
    $0.256$
  • C
    $0.944$
  • D
    $0.764$

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જો $\sin ^{-1} x+\sin ^{-1} y=\frac{\pi}{3}$ અને $\cot ^{-1}\left(\frac{1}{x}\right)-\cot ^{-1}\left(\frac{1}{y}\right)=0$ હોય,તો $2 x^2+y^2-x y=$

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

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જો $f(n) = \tan \left[\tan ^{-1} \frac{1}{1+2} + \tan ^{-1} \frac{1}{1+6} + \tan ^{-1} \frac{1}{1+12} + \ldots + \tan ^{-1} \frac{1}{1+n(n+1)}\right]$ હોય, તો $f(2021) =$

જો $\sin ^{-1}\left(\frac{x}{13}\right)+\operatorname{cosec}^{-1}\left(\frac{13}{12}\right)=\frac{\pi}{2}$ હોય, તો $x$ ની કિંમત શોધો.

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

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