જો $\sin^4 \theta \cos^2 \theta = \sum_{n=0}^{\infty} a_{2n} \cos 2n \theta$ હોય,તો $n$ ની ન્યૂનતમ કિંમત શોધો જેના માટે $a_{2n} = 0$ થાય.

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

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જો $540^{\circ} < A < 630^{\circ}$ અને $|\cos A| = \frac{5}{13}$ હોય,તો $\tan \frac{A}{2} \tan A = $

જો $\tan x + \tan \left( \frac{\pi}{3} + x \right) + \tan \left( \frac{2\pi}{3} + x \right) = 3$ હોય,તો

જો $\frac{5\pi}{2} < x < 3\pi$ હોય,તો પદાવલિ $\frac{\sqrt{1 - \sin x} + \sqrt{1 + \sin x}}{\sqrt{1 - \sin x} - \sqrt{1 + \sin x}}$ ની કિંમત શોધો.

જો $\cos ^3 x \sin 4 x = \sum_{r=0}^{n} a_{r} \sin rx$ તમામ $x \in R$ માટે હોય,તો $a_3+a_5 : a_1+a_7 = $

જો $\tan A = \frac{1 - \cos B}{\sin B}$ હોય,તો $\tan B$ ના પદમાં $\tan 2A$ શોધો.

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