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Question -

Find the general solution of the equation┬а ┬аsin 2x + cos x = 0



Answer -

It is given that
sin 2x + cos x = 0
We can write it as
2 sin x cos x + cos x = 0
cos x (2 sin x + 1) = 0
cos x = 0 or 2 sin x + 1 = 0
Let cos x = 0

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