A) \[\sin (90{}^\circ -\theta )=sin\theta \]
B) \[cos(90{}^\circ -\theta )=\cos \theta \]
C) \[\sin (90{}^\circ -\theta )=\cos \theta \]
D) \[tan(90{}^\circ +\theta )=\tan \theta \]
Correct Answer: C
Solution :
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