यदि $\sin \alpha = \frac{{336}}{{625}}$ तथा $450^\circ < \alpha < 540^\circ ,$ हो तो $\sin \left( {\frac{\alpha }{4}} \right) $ बराबर है
यदि $\sin \alpha = \frac{{336}}{{625}}$ तथा $450^\circ < \alpha < 540^\circ ,$ हो तो $\sin \left( {\frac{\alpha }{4}} \right) $ बराबर है
- A
$\frac{1}{{5\sqrt 2 }}$
- B
$\frac{7}{25}$
- C
$\frac{4}{5}$
- D
$\frac{3}{5}$
Similar Questions
$\frac{{\sin \theta + \sin 2\theta }}{{1 + \cos \theta + \cos 2\theta }} = $
$\frac{{\sin \theta + \sin 2\theta }}{{1 + \cos \theta + \cos 2\theta }} = $
$\cos A + \cos (240^\circ + A) + \cos (240^\circ - A) = $
$\cos A + \cos (240^\circ + A) + \cos (240^\circ - A) = $
यदि $k = \sin \frac{\pi }{{18}}\,.\,\sin \frac{{5\pi }}{{18}}\,.\,\sin \frac{{7\pi }}{{18}},$ तो $k$ का आंकिक मान है
यदि $k = \sin \frac{\pi }{{18}}\,.\,\sin \frac{{5\pi }}{{18}}\,.\,\sin \frac{{7\pi }}{{18}},$ तो $k$ का आंकिक मान है
- [IIT 1993]
$\frac{{\cos 12^\circ - \sin 12^\circ }}{{\cos 12^\circ + \sin 12^\circ }} + \frac{{\sin 147^\circ }}{{\cos 147^\circ }} = $
$\frac{{\cos 12^\circ - \sin 12^\circ }}{{\cos 12^\circ + \sin 12^\circ }} + \frac{{\sin 147^\circ }}{{\cos 147^\circ }} = $
यदि $\cos A = \frac{3}{4}$, तब $32\sin \frac{A}{2}\cos \frac{5}{2}A = $
यदि $\cos A = \frac{3}{4}$, तब $32\sin \frac{A}{2}\cos \frac{5}{2}A = $