f(x)sin^4x+cos^4x-1/sin(3π/2+x)cos(3π/2-x)的奇偶性

f(x)sin^4x+cos^4x-1/sin(3π/2+x)cos(3π/2-x)的奇偶性 求下列函数的奇偶性f(x)=(1+sin x-cos x)/(1+cos x+sin x),x属于[(-π/2),(π/ 判断下列函数的奇偶性 f(x)=[sin(π/2+x)cos(π/2-x)tan(-x+3π)]/[sin(7π-x)t f(X)=sin^4x-cos^4x+cos^2x 判断奇偶性 要具体过程的. 化简[1-(sin^4x-sin^2cos^2x+cos^4x)/(sin^2)]+3sin^2x 已知函数f(x)=cos(2x-π/3)+sin^2 x-cos^2 x 已知函数f(x)=cos(2x-π\3)+sin²x-cos²x 求导f(x) = cos(3x) * cos(2x) + sin(3x) * sin(2x). 化简2sin^2[(π/4)+x]+根号3（sin^x-cos^x）-1 已知函数f(x)=cos(2x-π/3)+2sin(x-π/4)sin(x+π/4) f(x)=cos(2x-π/3)+2sin(x-π/4)sin(x+/4π) 三角函数 已知函数f(x)=sin^2*x-根号3*sinπ/4*x*cosπ/4*x