$\cot \theta - \tan \theta - 2 \tan 2 \theta - 4 \tan 4 \theta = $

  • A
    $8 \cot 8 \theta$
  • B
    $\cot 8 \theta + \tan 3 \theta$
  • C
    $\cot 8 \theta + \cot 6 \theta$
  • D
    $4 \cot 8 \theta - \tan 6 \theta$

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ધારો કે $n$ એક એકી પૂર્ણાંક છે. જો દરેક $\theta$ માટે $\sin n\theta = \sum\limits_{r = 0}^n {{b_r}{{\sin }^r}\theta } $ હોય,તો

$\sin 4\theta$ ને કેવી રીતે લખી શકાય?

જો $\cos \theta = \frac{-3}{5}$ અને $\pi < \theta < \frac{3 \pi}{2}$ હોય,તો $\tan \left(\frac{\theta}{2}\right) = $

જો $630^{\circ} < \theta < 810^{\circ}$ અને $\tan \theta = -\frac{7}{24}$ હોય,તો $\cos \left(\frac{\theta}{4}\right) = $

જો $\sec x + \tan x = 2$,જ્યાં $0 < x < \frac{\pi}{2}$ હોય,તો $\sin \frac{x}{4}$ ની કિંમત શોધો.

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