设y=sinx/x^2,求f'(π/3)
设y=sinx/x^2,求f'(π/3)
设y=f(sinx)+e^x^2,f'(x)存在,求y'及dy
设y=f(x^3)+f(sinx),f具有一阶导数,求dy/dx
设x∈[0,π],y∈[0,1],试求函数f(x,y)=(2y-1)sinx+(1-y)sin[(1-y)x]的最小值.
设f(x)满足f(-sinx)+3f(sinx)=4sinx*cosx(x的绝对值小于等于π/2)
设函数y=f(x)由方程ln(x^2+y)=x^3 y+sinx确定,求dy/dx (x=0)
设y=sinx/x^2 求y导是多少?
设函数y=f(x)由方程ln(x^2+y)=x^3+sinx确定,求dy/dx(x=0)
求函数的单调区间:(1)y=sin(π/4-3x),(2)f(x)=sinx(sinx-cosx)
y=f(x+sinx) 求y''.
设f(x)=cos2x+sinx 求f(π/3)的值
设y=e^sinx+3^x 求dy 急!