y =x的三次方减去2x,y=3x的平方-2,在1和-1点切线方程-搜答案-搜搜考试网

^表示次方x=√3+√2y=√3-√2x^3y+y^3x=xy(x^2+y^2)=(√3+√2)(√3-√2)(3+2+2√6+3+2-2√6)=1*(5+5)=10手机提问的朋友在客户端右上角评价点

(-1/2*xy²)³-1/6*x(xy³)²=-1/8*x³y^6-1/6*x³y^6=-7/24*x³y^6

a(x的3m次方y12次方)÷(9x的4次方y的2n次方)=2x五次方y四次方(a/9)(x的3m-4次方y的12-2n次方)=2x五次方y四次方所以a/9=23m-4=512-2n=4所以a=18m

x³y+2x²y²+xy³=xy(x²+2xy+y²)=xy(x+y)²=1×3²=9

（x+y）三次方×（2x+2y）三次方×（3x+3y）三次方=(x+y)³×8(x+y)³×27(x+y)³=216((x+y)的9次方

xy的三次方-2x²y²+x的三次方y=xy(y²-2xy+x²)=xy(x-y)²

x的三次方y的平方+x的平方y三次方=x²y²(x+y)=(xy)²(x+y)=(-2)²*(-3)=-12

7x^3-6x^3y+3x^2y+3x^3+6x^3y-3x^2y-10x^3,其中x=-2010.y=2012=(7x^3+3x^3-10x^3)+(6x^3y-6x^3y)+(3x^2y-3x^2

∵|2x-y+5|+(x+2y-4)的平方=0∴2x-y+5=0,x+2y-4=0∴2x-y=-5,x+2y=4x-3y=-9则（2x-y)的三次方-（x-3y)(y-2x)的平方=(-5)^3-(y

首先x3-y3=(x-y)(x2+xy+y2)其次x3-y3-3xy=1所以x3-y3=1+3xy=(x-y)(x2+xy+y2)x-y=(1+3xy)/(x2+xy+y2)=(1+3xy)/[(x-

非奇非偶函数定义域x∈【0,+∞）不关于原点对称所以不具备奇偶性

绝对值平方大于等于0所以此题只有0+0=0满足题意|x+2|=0；(y+1)²=0解得x=-2;y=-1-3(x-2y)³-2(2x-y)³=-3(0)³-2(

y-2x=-20102x-y=20102x^4y³-x³y^4=x³y³(2x-y)=(xy)³(2x-y)=10³×2010=201000

y=(x-2)^3-x^3y'=3(x-2)^2-3x^2=12(1-x),y'(1)=0,驻点x=1y''=-12y(1)=-2是唯一的极值,是极大值,故也是最大值.

/(X-3)^2+Y+3/=0则X=3Y=-3(-X)^3+(-Y)^3-(Y/X)^2010=(-3)^3+3^3-1=-1

原式=(x+y)³×[2(x+y)]³×[3(x+y)]³=(1/2)³×1³×(3/2)³=1/8×27/8=27/64

(3x分之y)的平方×(-y分之x)的三次方÷(-x分之2y)方=(y²/9x²)(-x³/y³)(x²/4y²)=-x³/36y

（x+y）^3-x^3-y^3+3xy=（x+y）^3-（x+y)(x²-xy+y²）+3xy=(x+y)(x²+2xy+y²-x²+xy-y