(x^2+y^2)(x^2+y^2-1)-3因式分解
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(x^2+y^2)(x^2+y^2-1)-3因式分解(x^2+y^2)(x^2+y^2-1)-3因式分解(x^2+y^2)(x^2+y^2-1)-3因式分解
(x^2+y^2)(x^2+y^2-1)-3因式分解
(x^2+y^2)(x^2+y^2-1)-3因式分解
(x^2+y^2)(x^2+y^2-1)-3因式分解
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对于(y一撇)y`=y/x(y-1)求导,我求的结果是y``=-y^2-y`x+y/x^2(y-1)^2 怎么不对啊,我的求导过程是:y`x(y-1) - [x(y-1)]` y y`xy-y`x-(y-1+xy`)y -y^2-y`x+yy``=-------------------------=----------------------=-----------------x^2 (y-1
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(x/x+y +2y/x+y)乘以xy/ x+2y除以(1/x+1/y)(2)(3x^2/4y)^2乘以2y/3x+ x^2/2y^2除以2y^2/x
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x根号x+x根号y/xy-y^2)-(x+根号xy+y/x根号x-y根号)y
y=2x*(*代表X)y=(lnx)*y=(x/1+X)*