Request a call back Asked by sinchanaandavan | 02 Jan, 2022, 12:17: PM Expert Answer

2sin(4x) cosx + 2sin(8x) cosx = 2cosx(sin4x+sin8x) = 2cosx (2sin6x cos2x) = 4cosx cos2x sin6x

2cos(4x) cosx + 2cos(8x) cosx = 2cosx (cos4x + cos8x) = 2cosx (2cos6x cos2x) = 4 cosx cos2x cos6x Answered by Renu Varma | 03 Jan, 2022, 11:41: AM

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