$\sin \left(2 \sin ^{-1} 0.8\right)$ નું મૂલ્ય કેટલું થાય?

  • A
    $0.48$
  • B
    $0.16$
  • C
    $0.96$
  • D
    $0.12$

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$\sin \left( \frac{1}{2} \cos^{-1} \frac{4}{5} \right) = $

$\tan ^{-1}\left(\frac{1+\sqrt{3}}{3+\sqrt{3}}\right)+\sec ^{-1}\left(\sqrt{\frac{8+4 \sqrt{3}}{6+3 \sqrt{3}}}\right)$ ની કિંમત $.........$ છે.

$1 + \cot^2(\sin^{-1}x) = $

જો $\tan ^{-1}\left(\frac{1-x}{1+x}\right)=\frac{1}{2} \tan ^{-1} x$ હોય,તો $x$ ની કિંમત શોધો.

જો $\sin ^{-1}\left(x-\frac{x^{2}}{2}+\frac{x^{3}}{4}-\frac{x^{4}}{8}+\ldots\right)=\frac{\pi}{6},$ જ્યાં $|x| < 2$ હોય,તો $x$ ની કિંમત શોધો.

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