જો $\theta = \cot^{-1}(7) + \cot^{-1}(8) + \cot^{-1}(18)$ હોય,તો $\cot \theta$ ની કિંમત શોધો.

  • A
    $2$
  • B
    $3$
  • C
    $4$
  • D
    $1$

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Similar Questions

$\sin^{-1} \frac{1}{\sqrt{5}} + \cot^{-1} 3$ ની કિંમત શોધો.

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

$\sin^{-1} \sqrt{\frac{x}{x+a}}$ ની કિંમત શું થાય?

જો $y = \tan^{-1}(\sec x^3 - \tan x^3)$ અને $\frac{\pi}{2} < x^3 < \frac{3\pi}{2}$ હોય,તો:

જો $\frac{\pi}{2} \leq x \leq \frac{3 \pi}{4}$ હોય,તો $\cos ^{-1}\left(\frac{12}{13} \cos x+\frac{5}{13} \sin x\right)$ ની કિંમત શોધો.

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