જો $\frac{3\pi}{4} < \alpha < \pi$ હોય,તો $\sqrt{\csc^2 \alpha + 2\cot \alpha}$ ની કિંમત શોધો.

  • A
    $1 + \cot \alpha$
  • B
    $1 - \cot \alpha$
  • C
    $-1 - \cot \alpha$
  • D
    $-1 + \cot \alpha$

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Similar Questions

જો $x + y = 3 - \cos 4\theta$ અને $x - y = 4 \sin 2\theta$ હોય,તો:

$\sin ^2 \frac{\pi }{8} + \sin ^2 \frac{3\pi }{8} + \sin ^2 \frac{5\pi }{8} + \sin ^2 \frac{7\pi }{8} = $

જો $A + B + C = \pi$ $(A, B, C > 0)$ અને ખૂણો $C$ ગુરુકોણ હોય,તો:

જો $A + B + C = \pi ,$ હોય તો $\cos \, 2A + \cos \, 2B + \cos \, 2C = $

જો $\cos \alpha = \frac{2 \cos \beta - 1}{2 - \cos \beta}$ હોય,તો $\tan \frac{\alpha}{2} \cot \frac{\beta}{2}$ ની કિંમત શોધો,જ્યાં $(0 < \alpha < \pi$ અને $0 < \beta < \pi)$.

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