$\cot 16^{\circ} \cot 44^{\circ} + \cot 44^{\circ} \cot 76^{\circ} - \cot 76^{\circ} \cot 16^{\circ} = $

  • A
    $1$
  • B
    $-1$
  • C
    $-3$
  • D
    $3$

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Similar Questions

ધારો કે $S = \{x \in \left(-\frac{\pi}{2}, \frac{\pi}{2}\right) : 9^{1-\tan^2 x} + 9^{\tan^2 x} = 10\}$ અને $\beta = \sum_{x \in S} \tan^2\left(\frac{x}{3}\right)$,તો $\frac{1}{6}(\beta - 14)^2$ ની કિંમત શોધો.

જો $a = \frac{x}{y-z}$,$b = \frac{y}{z-x}$,અને $c = \frac{z}{x-y}$,જ્યાં $x, y$,અને $z$ ભિન્ન છે જેથી $x-y, y-z, z-x \neq 0$,તો $ab + bc + ca + abc$ ની કિંમત શું થાય?

જો $\tan x = \frac{b}{a}$ હોય,તો $\sqrt{\frac{a + b}{a - b}} + \sqrt{\frac{a - b}{a + b}} = $

જો $a \tan \alpha + b \tan \beta = (a + b) \tan \left( \frac{\alpha + \beta}{2} \right)$ અને $\alpha - \beta \neq 2n\pi$ હોય,તો $\frac{\cos \beta}{\cos \alpha} = $

જો $\cos \left(\frac{\alpha-\beta}{2}\right)=2 \cos \left(\frac{\alpha+\beta}{2}\right)$ હોય,તો $\tan \frac{\alpha}{2} \tan \frac{\beta}{2}=$

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