જો $\cos A = \frac{3}{4}$ હોય,તો $32\sin \left( \frac{A}{2} \right)\sin \left( \frac{5A}{2} \right) = $

  • A
    $7$
  • B
    $8$
  • C
    $11$
  • D
    આમાંથી કોઈ નહીં

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જો $\sin \theta = -\frac{4}{5}$ અને $\theta$ ત્રીજા ચરણમાં હોય,તો $\cos \frac{\theta}{2} = $

જો $2 \cos \theta = x + \frac{1}{x}$ હોય,તો $2 \cos 3 \theta = $

જો $\tan \theta = \frac{a}{b}$ હોય,તો $b \cos 2 \theta + a \sin 2 \theta = $

કિંમત શોધો: $\sin(22 \frac{1}{2}^{\circ})$

$\frac{\cot x - \tan x}{\cot 2x}$ ની કિંમત શું છે?

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