已知sin(x+π/6)sin(x-π/6)=11/20,则tanx的值为?
来源:学生作业帮助网 编辑:作业帮 时间:2024/09/09 08:16:18
xSn@(RXI< D&aV
jtQZ)*M)PĉQ)xsϹΝFLξoCS?@2X $`-(o'
k[!8ik:"5@̼NUe8B(,o2JR q'$˂T ;~=1#R}Sײ<ȏhgto%o.sX/ُ0$e˥p&v~hTyw.x^;: ;B{\q\M\M˃x.B2`XTSB1LXuMOLLÀhY|Sƒ=$p$U7
d ۪ep\a+!p.$ģi<;ܟ-p_ >x8Waz:l:
已知sin(x+π/6)=1/3,求sin(5π/6-x)+sin^2(π/3-x)
已知sin(x+π/6)=1/4,求sin(5π/6-x)+sin^2(π/3-x)
已知函数f(x)=[2sin(x-π/6)+√3sin x]cos x+sin^2x,x∈R
已知F(X)=根号3COS^2 X+SIN XCOS X-2SIN X*SIN(X-π/6),求F(X)的最大值
sin^2(π/3-x)+sin^2(π/6+x)
已知函数f(x)=sin(2x+π/6)+sin(2x+π/6)+2cos²x
已知函数f(x)=(1+1 anx)sin^2x+m sin(x+π/4)sin(x-π/4)
sin(x+π/4)
已知-π/2<x<0,sin x+cos x=1/5求sin 2x+2 sin
已知函数f(x)=2sin(ax-π/6)sin(ax+π/3)
已知sin(π/6+x)=3/5,π/3
已知sin(π/4+x)sin(π/4-x)=1/6,x(π/2,π),则sin4x=?
已知sin(x-π/6)=1/2,0
已知y=sin(2x+π/6) 求值域
已知sin(x+π/6)=1/3,则sin(5/6π-x)+cos2(π/3-x)=?
已知sin(x+π/3)=1/4,求sin(2π/3-x)+cos²(π/6-x)
已知函数f(x)=2根号3sin平方x-sin(2x-π/3)
已知x+y+z=π,证明sin(x+y)+sin(y+z)+sin(z+x)≥sin2x+sin2y+sin2z