MCQ
$\sin 15^\circ + \cos 105^\circ = $
- ✓$0$
- B$2\sin 15^\circ $
- C$\cos 15^\circ + \sin 15^\circ $
- D$\sin 15^\circ - \cos 15^\circ $
$\sin 15^\circ + \cos (90^\circ + 15^\circ ) = \sin 15^\circ - \sin 15^\circ = 0$.
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