y=3√x-5-2/5√5-x+2求4x+8y

y=x^5+√x+1/x^3 ,求导数结果是y’=2x-5/2x^-7/2-3x^-4,对y求导数 已知4x²+y²-4x-6y+10=0求（2/3x（√9x）+(y²√x/y³)×(x²√1/x×5x√y/x)的值 已知4x²+y²-4x-6y+10=0求（2/3x（√9x）+(y²√x/y³)-(x²√1/x-5x√y/x)的值 已知4x²+y²-4x-6y+10=0,求[(2/3)x√(9x)+y²√(x/y³)-(x²√(1/x)-5x√(y/x)的值 已知x-y/x+y=3,求代数式5(x-y)/x+y-x+y/2(x-y) 求值域 1.y=-x+x+2,x∈(-1,2] 2.y=8/x-4x+5 3.y=x-2√x求值域1.y=-x+x+2,x∈(-1,2]2.y=8/x-4x+53.y=x-2√x+3 若x>0,y>0,且√x(√x+√y)=3√y(√x+5√y),求2x+2√x*√y+3y/x-√x*√y+y 已知4x²+y²-4x-6y+10=0,求(2/3√9x+y²√x/y³)-(x√1/x-5x√y/x)的值. 已知4x²+y²-4x-6y+10=0,求(2/3√9x +y²√x/y³)-(x²√1/x -5x√y/x)的值. 已知x^2+y^2-4x-2y+5=0,求【2/3x√9x+y^2 √[x/y^2]】的值 求y=√(x^2+2x+2)+√(x^2-4x+5)值域 (x-y)/(x+y)=3求( 3x-2y-1)/(x+y-5) 求下列函数的值域 （1）Y=（5X-1）/（4X+2） （2）Y=(X^2-4X+3)/(2x^2-x-1) (3)Y=(2X^2+4X-7)/(X^2+2X+3)(4)Y=2X-√(X-1)(5)Y=4-√(3+2X-X^2) xy²/(x²y-y) × x²/(x²+x)=(x²-3x)/(x²-5x) × 2x-10/(x²-6x+9)=化简求植x²-1/(x²-x-2)除以x/2x-4,其中x=1/2[x-x/(x+1)]除以[x/(2x-4)] ,其中x=√2+1 √x(√x+2√y)=√y(6√x+5√y,求x-3√xy+2y/x+√xy-6y 已知7x+5y/2y-x=3/2,且x≠0,求X/x-4y x²+y+2x-4√y+5=0求x, 若实数X,Y满足x²+y²-4x-2y+5=0求√x+y/√8y-2x