જો $\theta = 3\alpha$ અને $\sin \theta = \frac{a}{\sqrt{a^2 + b^2}}$ હોય,તો $a \csc \alpha - b \sec \alpha$ પદાવલિનું મૂલ્ય શું થાય?

  • A
    $2\sqrt{a^2 + b^2}$
  • B
    $\sqrt{a^2 + b^2}$
  • C
    $a + b$
  • D
    આમાંથી કોઈ નહીં

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$\left( \frac{\sin 2A}{1 + \cos 2A} \right) \left( \frac{\cos A}{1 + \cos A} \right) = $

જો $\sin \theta - \cos \theta = \frac{1}{\sqrt{3}}$ હોય,તો $\sin(2\theta) + \cos(4\theta) + \sin(6\theta) = $

જો $\frac{\sec 8\theta - 1}{\sec 4\theta - 1} = \frac{a + b \tan^2 2\theta}{1 + c \tan^2 2\theta + d \tan^4 2\theta}$ (જ્યાં $\theta \neq \frac{n\pi}{16}, n \in I$),તો $(a - b + c - d)$ ની કિંમત શોધો.

$cot\, x + cot\, (60^\circ + x) + cot\, (120^\circ + x)$ ની કિંમત શોધો:

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