Question

General solution of 2cos²x +3 sin x = 0

Answer 1

Hi Friend !!!

Here is ur answer !!!

2(1-sin²x) + 3sinx = 0

2 - 2sin²x + 3sinx = 0

2sin²x - 3sinx - 2 = 0

2sin²x - 4sinx + sinx -2 = 0

2sinx(sinx-2) +1(sinx-2) = 0

sin x = -1/2 or 2

General solutions are 2nπ-π/6

Hope it helps u

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