y=4x^2+16/(x^2+1)^2,求函数的最小值大家帮帮忙谢谢,求详细过程
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若x-y=1 化简(x+y)(x^2+y^2)(x^4+y^4)(x^8+y^8)(x^16+y^16)
{3(x+y)-4(x-y)=4 {x+y/2 + x-y/6=1
4x+2y=16 x-y=1,
2(x-y)/3-(x+y)/4=-1 (1) 6(x+y)-4(2x-y)=16 (2)
x-y/x-x+y/y-(x+y)(x-y)/y² y/x=2
(x-4y=-1 2x+y=16) (x-y=1 2x+y=5 )
(2x-2y)/3-(x-y)=-1和6(x+y)-4(2x-y)=16
解方程组2(x-y)/3-x+y/4=-1 6(x-y)-4(2x-y)=16
解方程组:2(x-y)/3-x+y/4=-1 ,6(x+y)-4(2x-y)=16
2(X-Y)/3=(X+Y)/4 -1 6(X+Y)=4(2X-Y)+16解方程
6(x+y)=4(2x-y)+16,2(x-y)/3=x+y/4-1
2(x-y)/3—x+y/4=1 6(x+y)—4(2x-y)=16
3分之2(x-y)-4分之x+y=-1 8(x+y)-4(2x-y)=16
x+y+2(-x-y+1)=3(1-y-x)-4-(y+x-1),x+y=?
3分之2(X-Y)-4分之X+Y=-1,3(X+Y)-2(X-Y)=16
初二上学期方程题 4x+y=5 5x+4y=63x-2y=1 2x+3y=13x-2y=7 7x+5y=32x+3y=17 2x-y=-4x+5y=6 2x+y=23x-6y=4 3x+2y=52x+y=73x-4y=53x+y=1x-2y=-1x+y=42x+3y=92x-3y=74x+5y=3x+y=20004x+6y=90003x+5y=113x-2y=42x+3y=215x-2y=5x+y=54x+3y=182x+3y=16x+4y=132x+3y=40x
(x-y) (x-2y)+(x+2y) (x-3y)-2(x-3y) (x-4y)=
先化简 再求值 (2x-y)(y+x)-(x-2y)(2y+x)-(-3y+x)^2其(√x+1)+y^2+4=-4y