化简sin(x+PI/3)+2sin(x-PI/3)-根号3*cos(2pi/3-1)
化简sin(x+PI/3)+2sin(x-PI/3)-根号3*cos(2pi/3-1)
化简:sin(2pi-a)sin(pi+a)cos(-pi-a)/sin(3pi-a)cos(pi-a)
若sin((pi/6)+x)=1/3,则cos((pi/3-x)=?cos((2pi/3)+x)=?
已知函数f(x)=cos(2x-pi/3)+2sin(x-pi)*sin(x+pi/4)
y=sin(2x+Pi/3)+cos(Pi/6-2x)周期为
sin(2x+pi/3)=cos(2x-pi/6) 成立吗
已知Sin(2x+pi/3)=1/3,求Sin(5Pi/6-4x),
三角形ABC中sin(2Pi-A)=-根号2cos(3Pi/2+B)根号3cos(2Pi-A)=根号2sin(Pi/2+
是否存在a属于(-pi/2,pi/2),b属于(0,pi),使等式sin(3Pi-a)=根号2cos(pi/2)-b),
(sin(x)*cos(x))^(1/3)',x,-pi,pi))求积分的matlab程序!
化简三角函数[sin(α+pi)*cos(pi+α)*cos(α+2pi)]/[tan(pi+α)*cos^3(-α-p
化简间sin(a-2pi)cos(a+pi)tan(a-99pi)cos(pi-a)sin(3pi-a)sin(-a-p