Question

Write the general solution of cos 0 = 0​

Answer 1

If cos x = 0, then consider cos-1(0)= π/2. x = ±π/3 +2kπ or x = ±π/2 +2kπ, where k is any integer. Let us find the general solutions of 2sin x = -1. x = -π/6 +2kπ or x = -5π/6 +2kπ, where k is any integer.

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