y=-2(sinx)^2+2sin(2x)+3
证明sin(x+y)sin(x-y)=(sinx)^2-(siny)^2.
sin(x+y)-sinx=2cos(x+1/2y)sin(1/2y)的详细证明步骤.
求导数 y=sin^3(2x)+sinx^2
Y=2COSX·sin(X+pai/3)-根号3sin平方X+sinX·cosX
证明sinx+siny+sinz-sin(x+y+z)=4sin((x+y)/2)sin((x+y)/2)sin((x+
y=-2(sinx)^2+2sin(2x)+3
已知sinx=13,sin(x+y)=1,则sin(2y+x)= ___ .
函数y=sinx+2sin^3 x+3sin^5 x的最小正周期
求下列函数的值域 y=sinx/(sinx+2) y=1/(sin²x+1)
将函数y=sinx的图像转变为y=sin(2x+π/6)
求证:sin(x-y)/(sinx-siny)=cos[(x-y)/2]/cos[(x+y)/2]
求Y=sin²X+sinX+cosX+2 (X∈R)值域