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| 1. |
Sin16A/16sinA =cosA cos 2A cos4A cos8A |
| Answer» Using Identity Sin 2x = 2 sin X cos X , Sin 16A = 2 sin 8A cos 8A = 2 ( 2 sin 4A cos 4A) cos 8 Expand in similar way for sin 4A and then sin 2A, You will get required answer.. | |