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Sir and friends pls. Give my ans. Cos1° cos 2° cos3° ............cos180° = 0 |
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Answer» cos1°×cos2°×cos3°.........cos89°×cos90°×cos91°......cos180°=cos1°×cos2°×cos3°......0×cos90°×cos91°......cos180°=0 Not equal to zero .This equal to 1. |
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