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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જો $3 \sin x + 4 \cos x = 5$ હોય,તો $6 \tan \frac{x}{2} - 9 \tan^2 \frac{x}{2}$ ની કિંમત શોધો.

જો $\sin 3\alpha = 4\sin \alpha \sin (x + \alpha )\sin (x - \alpha ),$ હોય,તો $x = $

$f(x) = 3 \sin x - 4 \sin^3 x$ આપેલ હોય,તો $f\left(\frac{\pi}{3}\right)$ ની કિંમત શોધો.

$\sin^{2}\left(\frac{\pi}{8}\right)$ ની કિંમત =

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