(iv) cos 1° cos 2º cos 3º... cos 180º = 0
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Answered by
9
Answer:
Value of equation above is 0, because in this cos 90 is also being multiplied. since value of cos 90 is 0 so whole equation becomes 0.
=cos1.cos2.....cos90...cos 180
= cos 1. cos 2.... (0)...cos 180
= 0
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Answered by
7
cos 1° cos 2°.... cos 90°..... cos 180°
= cos 1° × ..... (0) ....... × cos 180°
= 0.
NOTE : cos 90° = 0
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