de value of cos1 cos2 cos 3 ....cos 180 is =?

plz answer!!!

Hi Jahnavi!

Here is the answer to your query.

cos 1° ×.cos 2° × cos 3°....... × cos 179°

= cos 1° ×.cos 2° × cos 3°... × cos 89° × cos 90° × cos 91° × ... × cos 179°

= cos 1° ×.cos 2° × cos 3°... × cos 89° × 0 × cos 91° × ... × cos 179° [cos 90° = 0]

= 0

Hope! This will help you.

Cheers!!!

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