Trigonometry solutions class 11 pdf

problem there can write COS 6x as so 3 (2x) COS 3 (2x) = 4 - 3 COS 2x = - = = 32 - 4 - 48 + 24 - = 32 - 48 + 18 - 1 = RHS Question: 5 Find the general solution for each of the delle Following Equation Answer: cos4x cos2x cos4x = - = 0 cos2x We know that we use this identity cos 4x - 2x = cos -2sin3xsinx -2sin3xsinx sin3xsinx = 0 = 0 SO, with this ................
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