Question
cos 1∘ × cos 2∘ × cos 3∘ ×……..× cos 180∘ is equal to:
Answer: Option B
:
B
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:
B
We know that, cos 90∘ = 0
The given expression
cos 1∘ × cos 2∘ × cos 3∘ ×....× cos 90∘ ×……..× cos 180∘ reduces to zero as it contains cos 90∘ which is equal to 0.
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