sin x(sin x+cos x)=1求x等于多少
sin(sin(sin(sin(x)=cos(cos(cos(cos(x),X等于多少?
sin x(sin x+cos x)=1求x等于多少
sin(-x) cos(-x)等于多少
已知tan=2,求(cos x+sin x)/(cos x-sin x)+sin^2x
已知sin X+cos X=m,|m|小于等于根号2且|m|不等于1,求sin X^3+cos X^3,sin X^4+
已知sin x+cos x=1/5,且0小于等于X小于等于pi,求sin x-cos x
sin^3x-cos^3x化简等于多少
sin^2(x)cos^2(x)积分等于多少
cos^2x-sin^2x等于多少?
cos x sin x=3,求cos x+sin x
SIN(30度-X)=1\3,则COS(120度+2X)等于多少.
sin(1/x)-cos(1/x)/x