作业帮g(x)=2sin2x-2sin(2x+π/3)怎样变成g（x）=2sin2x-2[(sin2x)*(1/2)+(cos2x)(√3/2)]
来源：学生作业帮助网 编辑：作业帮 时间：2024/11/25 05:38:23
![g(x)=2sin2x-2sin(2x+π/3)怎样变成g（x）=2sin2x-2[(sin2x)*(1/2)+(cos2x)(√3/2)]](/uploads/image/z/4335307-43-7.jpg?t=g%28x%29%3D2sin2x-2sin%282x%2B%CF%80%2F3%29%E6%80%8E%E6%A0%B7%E5%8F%98%E6%88%90g%EF%BC%88x%EF%BC%89%3D2sin2x-2%5B%28sin2x%29%2A%281%2F2%29%2B%28cos2x%29%28%E2%88%9A3%2F2%29%5D)
x)Kרд5*3QF55=[ig x0Z07H/4 u2cmid~
-]tCyϧx~{yY{f >Q&@@mAM
@Rd-x F 1 d
g(x)=2sin2x-2sin(2x+π/3)怎样变成g（x）=2sin2x-2[(sin2x)*(1/2)+(cos2x)(√3/2)]
g(x)=2sin2x-2sin(2x+π/3)怎样变成g（x）=2sin2x-2[(sin2x)*(1/2)+(cos2x)(√3/2)]
g(x)=2sin2x-2sin(2x+π/3)怎样变成g（x）=2sin2x-2[(sin2x)*(1/2)+(cos2x)(√3/2)]
将sin(2x+π/3)用诱导公式换；sin（α+β）=sinαcosβ+cosαsinβ sin π/3=√3/2 cosπ/3=1/2
Sin2x=sin^2x
化简f(x)=sin2x-2sin^2x*sin2x
g(x)=2sin2x-2sin(2x+π/3)怎样变成g（x）=2sin2x-2[(sin2x)*(1/2)+(cos2x)(√3/2)]
sin2x-x 是(sin2x)-x还是sin(2x-x)?
sin2x=sin(x/2) 0
证明 2sin(π+x)cos(π-x)=sin2x
f(x)=sin2x+2sin(x+45°)最大值
sin2x-2sin平方x*sin2x的奇偶性和周期?
sin^2x+sin2x 最小正周期
y=根号2sin2x变换到sin^2x+sin2x+2cos^2x
f(x)=sin2x-2sin^2x*sin2x最小正周期等于多少?
化简：2cos2x+2sin^2 x+cos(-x)分之sin2x+sin(π-x)=___________
化简：sin2x+sin(π-x)/2cos2x+2sin^2x+cos(-x)=?
函数f(x)=2sin(x+π/4)sin(x-π/4)+sin2x的值域
求f【x】=2sin[x+π/4]sin[x-π/4]+sin2x的最大值
sin^2x=2sinxcosx=sin2x吗?
为什么sin2x+cos2x=2sin(2x+π/4)
sin2x + 2sin^2x=sinx + cosx 三角方程求解