y=sin(ax+b)的对称轴怎么算?
问题描述：
y=sin(ax+b)的对称轴怎么算?
答
sin(ax+b)=1
sin(ax+b)=-1
ax+b=(k+1/2)*pi
x= 1/a *( (k+1/2)*pi -b )
pi就是π =3.1415 k为整数