“微信扫一扫”进入题库练习及模拟考试
函数
A.\(\frac {1} {3}\sin {\left ( {x-\frac {\pi } {3}} \right )}\)
B.\(\frac {1} {3}\sin {\left ( {x+\frac {\pi } {3}} \right )}\)
C.\(\frac {1} {3}\sin {\left ( {2x-\frac {\pi } {6}} \right )}\)
D.\(\frac {1} {3}\sin {\left ( {2x+\frac {\pi } {6}} \right )}\)
参考答案:D