જો $\cos ^{-1}\left(\frac{5}{13}\right)+\cos ^{-1}\left(\frac{3}{5}\right)=\cos ^{-1} x$ હોય, તો $x$ ની કિંમત શોધો.

  • A
    $\frac{3}{65}$
  • B
    $\frac{-36}{65}$
  • C
    $\frac{-33}{65}$
  • D
    $-1$

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Similar Questions

જો $(\sin ^{-1} x)^{2}-(\cos ^{-1} x)^{2}=a ; 0 < x < 1, a \neq 0$ હોય,તો $2 x^{2}-1$ ની કિંમત શું થાય?

સાબિત કરો કે $\tan ^{-1} \frac{63}{16}=\sin ^{-1} \frac{5}{13}+\cos ^{-1} \frac{3}{5}$

જો $\sin ^{-1}\left(\frac{x}{5}\right)+\operatorname{cosec}^{-1}\left(\frac{5}{4}\right)=\frac{\pi}{2}$ હોય,તો $x$ ની કિંમત શોધો.

$\tan \left[ \sin^{-1} \left( \frac{3}{5} \right) + \cos^{-1} \left( \frac{3}{\sqrt{13}} \right) \right]$ ની કિંમત શોધો.

જો $\cos^{-1} \left( \frac{x}{2} \right) + \cos^{-1} \left( \frac{y}{3} \right) = \theta$ હોય,તો $9 x^{2} - 12 x y \cos \theta + 4 y^{2} =$ શું થાય?

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