Question

the value of cos 0 cos 1 cos 2 cos 3 .... cos 89 cos 90​

Answer 1

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value of cos 0. cos 1. cos2....cos 89. cos90

Solution :-

cos0° × cos1° × cos2° ×cos3°....×cos89°× cos90°

We know, cos90 = 0

thus,

=cos0°×cos1× cos2°× cos3°....×cos89°× 0

=0

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Answer 2

Answer:

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GIVEN TO FIND−

value of cos 0. cos 1. cos2....cos 89. cos90.

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SOLUTION

cos0° × cos1° × cos2° ×cos3°....×cos89°× cos90°

We know {cos90=0}

cos90=0

thus,

=cos0°×cos1× cos2°× cos3°....×cos89°× 0

=0

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