根号3 /2SIN X-1/2COS X
2个回答
根号3 /2SIN X-1/2COS X
=sin60sinx-cos60sin30
=cos(60-x)
相关问题
化简根号3sinx+cos x根号2(sin x - cos x);根号2cos x -根号6sin x
数学疑问,求解答f(x)=m•n=2cos^2 x+根号3sin2x=1+cos2x+根号3sin2x=2s
(1-cos2x)+sin2x=根号2(sin2x cosπ/4-cos2x sinπ/4)+1
F(x)=(根号3/2)sin2x-cos^2x-1/2.
若f(x)=1/2sin^2 (x)+cos^2(x)+根号3/4 sin2x
方程x^2/(sin根号2-sin根号3)+y^2/(cos根号2-cos根号3)=1表示的曲线是
已知cos2x+根号3sin2x+1
sin(x)+cos(x)=2/3 根号2倍(sin(2x-π/4)+1)/1+tan(x)=?
sin2x(2cos2x-1)=cos2x(根号3-2sin2x) x大于等于0小于2π
f(x)=根号3/2sinπx+1/2cosπx