Giải phương trình: \(\sin x + \sqrt 3 \cos x = 1.\)
A.\(S = \left\{ { - \frac{\pi }{6} + k2\pi ;\frac{\pi }{2} + k2\pi } \right\}\)
B.\(S = \left\{ {\frac{\pi }{6} + k2\pi ; - \frac{\pi }{2} + k2\pi } \right\}\)
C.\(S = \left\{ { - \frac{\pi }{6} + k2\pi ;\frac{\pi }{3} + k2\pi } \right\}\)
D.\(S = \left\{ {\frac{\pi }{6} + k2\pi ; - \frac{\pi }{3} + k2\pi } \right\}\)
A.\(S = \left\{ { - \frac{\pi }{6} + k2\pi ;\frac{\pi }{2} + k2\pi } \right\}\)
B.\(S = \left\{ {\frac{\pi }{6} + k2\pi ; - \frac{\pi }{2} + k2\pi } \right\}\)
C.\(S = \left\{ { - \frac{\pi }{6} + k2\pi ;\frac{\pi }{3} + k2\pi } \right\}\)
D.\(S = \left\{ {\frac{\pi }{6} + k2\pi ; - \frac{\pi }{3} + k2\pi } \right\}\)
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Hóa Học lớp 12
