y=cos立方(1-2x),求y'和dy

y=cos立方(1-2x),求y'和dy y=(cos^2x) 求dy 设y=cos^2(x+1),求dy 设y=e^cos^2*1/x,求dy 设y等于sion5x+cos立方x求dy y=e_x cos x 求dy y=(1+x^4)^cos x,求dy急 设y=e^(-x) cos 1/x,求dy. 设y=cos(x^2+e^x)求dy xy^3-cos(x+y)=1,求dy y=cos(1-x的平方),求dy xy^3-cos(x+y)=1,求dy 函数y=cos(2x+π/4) 求dy dy/dx=1-cos(y-x) 已知y=cos(x+y),求dy 设y=cos(2x^2+x+1) 求dy/dx. 过程 du(x,y)=2xycos(x^2y)dx+x^2cos(x^y)dy,求u(x,y) 设y=cos(5x+4)求y'和dy 等于多少