Trigonometry.

Asked by khushal305 | 28th Sep, 2009, 01:52: PM

Expert Answer:

cos 1° .  cos 2° .  cos 3° ................... cos 180°  =cos 1° .  cos 2° .  cos 3° ...........cos 90o....... cos 180°

Now cos 90o. =0  so the product will be zero.

Answered by  | 29th Sep, 2009, 04:38: PM

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