Y=(X-8)[100-10(X-10)]
X+Y=7(100X+Y)-(10Y+X)=(10Y+X)-(10X+Y)
(4x-2y-z)-{5x[8y-2y-(x+y)]-x+(3y-10z)]=? kuai
Y=(X-8)[100-10(X-10)]
y=(x-1)(x-2)(x-3)(x-4)(x-5)(x-6)(x-7)(x-8)(x-9)(x-10)的导数在x=1
若x^2+y^2-8x-10y+41=0,求x/y+y/x的值
x^2+y^2-8x+10y+41=0求(x+y)^2013
已知/x/+x+y=10,/y/+x-y=12.求x+y的值
-6x-y-7x+6x-2y-10x+8y+x+6x-8y的值
由题意:(10Y+X)-(10X+Y)=(100X+Y)-(10Y+X) Y=6X 怎么算的啊 发一些详细的
已知实数x,y满足|x|+x+y=10、x+|y|-y=12,则x+y的值?
x=91;y=100; while(y>0){ @ if(x>100){x-=10;y--;} else x++;}
解方程组2x+y+x=10 x+2y+z=-6 x+y+2z=8