$\cos \left[\sin ^{-1}\left(\frac{3}{5}\right)+\cos ^{-1}\left(\frac{12}{13}\right)\right]=$

  • A
    $\frac{36}{65}$
  • B
    $\frac{12}{65}$
  • C
    $\frac{33}{65}$
  • D
    $\frac{3}{65}$

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Similar Questions

$\tan^{-1} \frac{1}{2} + \tan^{-1} \frac{1}{3} = ?$

જો $0 < x < 1$ હોય,તો $\sqrt{1 + x^2} [\{x \cos (\cot^{-1} x) + \sin (\cot^{-1} x)\} ^2 - 1]^{\frac{1}{2}} =$ શું થાય?

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 $8(\alpha+\beta)=$

જો $\tan ^{-1} x = \frac{\pi}{4} - \tan ^{-1} \left( \frac{1}{3} \right)$ હોય,તો $x$ ની કિંમત શોધો.

સાબિત કરો કે $3 \cos ^{-1} x = \cos ^{-1} (4 x^{3} - 3 x)$,જ્યાં $x \in [\frac{1}{2}, 1]$.

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