Math, asked by sudev, 1 year ago

cos1.cos2.cos3..........cos179

Answers

Answered by TPS

cos1.cos2.cos3.......... cos179
= cos1.cos2.cos3....cos89.cos90.cos91...... cos179
= cos1.cos2.cos3....cos89 × 0 × cos91...... cos179 (because cos90 = 0)
= 0

Answer is 0.

Answered by sambi

Cos1.Cos2.Cos3...........Cos179
cos1.cos2.cos3.........cos90.......cos179
cos90=0
any thing multiplied with 0 is 0

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