已知(x2+4y2)2-16x2y2=0,且x≠2y.请用含x的代数式表示y.
人气:131 ℃ 时间:2020-05-06 15:46:45
解答
∵(x
2+4y
2)
2-16x
2y
2=0
(x
2+4y
2+4xy)(x
2+4y
2-4xy)=0
(x+2y)
2(x-2y)
2=0
∴x+2y=0,x-2y=0
∴y=-
x或y=
x.
推荐
- 已知(x2+4y2)2-16x2y2=0,且x≠2y.请用含x的代数式表示y.
- 已知(x²+4y²)-16x²y²=0且x≠2y,试用含x的代数式表示y
- 1.已知(x²+4y²)²-16x²y²=0,且x≠2y试用含x的代数式表示y
- 已知(x2+4y2)2-16x2y2=0,且x≠2y.请用含x的代数式表示y.
- 已知代数式x+2y的值是3,则代数式2x+4y+1的值是( ) A.1 B.4 C.7 D.9
- 5y-6分之5=12分之5,y等于
- 已知曲线C:X2+Y2-2X-2Y+1=0相切的直线L交X,Y轴的正半轴AB两点,O为原点,若|OA|=a,|OB|=b(a>2,b>2) (1)求
- 已知水流的速度是5千米/时,轮船顺水航行需5小时,逆水航行需7小时,则A,B两码头之间的航程是多少千米2379
猜你喜欢
- 如果黄赤交角变大,为什么温带范围会缩小?
- It's fun to have a picnic,but they must get everything r______.
- She hopes to live a ___(peace)life It's ___(proba
- Y=sin2x的最小正周期怎么算?
- His name is Tony Brown.We can call him .
- The best love is the care you give
- 根据数字猜成语:A.1,2,5,6,7,8,9,10
- 皇历上说的今天是黄道吉日,为什么后面却是忌:诸事不宜.