Nghiệm của phương trình \(2 \sin \left( 2x- \frac{ \pi }{6} \right)+1=0 \) là:
A. \(x=-\frac{\pi }{6}+k\pi ,x=\frac{7\pi }{6}+k\pi ,\,\,k\in Z\)
B. \(x=k\pi ,x=\frac{2\pi }{3}+k\pi ,\,\,k\in Z\)
C. \(x=\pm \frac{\pi }{6}+k\pi ,\,\,k\in Z\)
D.\(x=-\frac{\pi }{6}+k\pi ,x=\frac{2\pi }{3}+k\pi ,\,\,k\in Z\)
A. \(x=-\frac{\pi }{6}+k\pi ,x=\frac{7\pi }{6}+k\pi ,\,\,k\in Z\)
B. \(x=k\pi ,x=\frac{2\pi }{3}+k\pi ,\,\,k\in Z\)
C. \(x=\pm \frac{\pi }{6}+k\pi ,\,\,k\in Z\)
D.\(x=-\frac{\pi }{6}+k\pi ,x=\frac{2\pi }{3}+k\pi ,\,\,k\in Z\)
Loga
Hóa Học lớp 12
