sinx=1/3,sin(x+y)=1,求sin(2x+y)
求 函数y=sin^x+sinx-1的值域
求下列函数的值域(1)y=(3+sinx)/(4-sinx) (2)y=sin^2x+cosx-3
函数y=sin*2x+sinx-1的值域
求函数的单调区间:(1)y=sin(π/4-3x),(2)f(x)=sinx(sinx-cosx)
证明sinx+siny+sinz-sin(x+y+z)=4sin((x+y)/2)sin((x+y)/2)sin((x+
sinx+siny=-1/3 cosx+cosy=1/2,求sin(x+y)的值.
求函数y=2sin^2x-3sinx+1的值域
求y=2sin^2x-3sinx+1的值域
求函数y=根号下3sinx-2sin^2x-1的定义域
证明sin(x+y)sin(x-y)=sinx-siny
已知x,y,z属于(0,派/2),sin^2x+sin^2y+sin^2z=1,求(sinx+siny+sinz)/(c
求y=sin(x-π/3)sinx最大值