sin(x+派/6)=-1/2 x=
2个回答
sin(x+π/6)=-1/2
x+π/6=-π/6+2kπ
或x+π/6=-5π/6+2kπ
解得
x=-π/3+2kπ 或x=-π+2kπ
相关问题
已知函数f(x)=2sin平方(派/6x)+sin((派/3x+派/6)-1,求f(x)值域
y=sin(2x+派/3)会等于y=sin(2x-派/6)?或y=cos(2x-派/6)?
己知sin(x+派)=-1/2计算sin(5派-x)-cos(x-3派/2)(2)sin(派/2+x)*tan(派/2+
sin平方(派/3 -x)+sin平方(派/6+x)=
已知函数f(x)=Sin(x-派/6)+cos(x-派/3),g(x)=2sin^2(x/2).
已知函数f(x)=2Sin(2x+派/6) (x属于R).若f(x1)=6/5..x1属于[派/4,派/2],求2
sin(派/4+x)cos(派/4+x)=1/6 x属于(90,180) 求cos2x和sin4x
数学(高中)1、f(x )=2sin(wx-派/6)siπ(wx+派/3) =2sin(wx-派/6)cos[(wx+派
证明sin派(x-1)=-sin派x
sin(派/6-x)=3/7,则cos(2派/3-x)=?