A) 0
B) 1
C) 2
D) \[\frac{1}{2}\]
Correct Answer: A
Solution :
We know that one of the factor of the given expression is \[\cos 90{}^\circ =0\]. Therefore\[\cos 1{}^\circ .\cos 2{}^\circ .\cos 3{}^\circ ...\cos 179{}^\circ =0\].You need to login to perform this action.
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