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!!!