对称轴满足
2x+π/3=kπ+π/2
所以
2x=kπ+π/6
x=kπ/2+π/12为什么满足2x+π/3=kπ+π/2一窍不通啊这个是因为sinx的对称轴是x=kπ+π/2啊那么我们将函数sin(2x+π/3)中的2x+π/3看成一个整体，然后解得x即可