CBSE Class 10 Answered
Trigonometry.
Asked by khushal305 | 28 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 | 29 Sep, 2009, 04:38: PM
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