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Find the general solution of each of the following equations: √ cos x + sin x = 1

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Find the general solution of each of the following equations: 

√ cos x + sin x = 1

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To Find: General solution.

[divide √2  on both sides and cos (x - y) = cos x cos y - sin x sin y]

Formula used: cos θ = cos α

θ = 2nπ ± α

By using above formula, we have

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