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

  • A
    $-1 \leq x \leq 1$
  • B
    $0 \leq x \leq 1$
  • C
    $\frac{1}{\sqrt{2}} \leq x \leq 1$
  • D
    $0 \leq x \leq \frac{1}{\sqrt{2}}$

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$\sin^{-1}(x)$ ની સાપેક્ષમાં $\tan^{-1} \left( \frac{x}{\sqrt{1 - x^2}} \right)$ નું વિકલન શું થાય?

$x$ ની કઈ કિંમત માટે $\sin(\cot^{-1} (1 + x)) = \cos(\tan^{-1} x)$ થાય?

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$\frac{\tan ^{-1}(\sqrt{3})-\sec ^{-1}(-2)}{\operatorname{cosec}^{-1}(-\sqrt{2})+\cos ^{-1}\left(\frac{-1}{2}\right)}$ ની કિંમત શોધો.

જો $A=2 \tan ^{-1}\left(\frac{1+x}{1-x}\right)$ અને $B=\cos ^{-1}\left(\frac{1-x^2}{1+x^2}\right)$,જ્યાં $x \in(0,1)$,તો $A-B=$

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