已知x,y满足x²+y²+4x-2y=0.求x²+y²的取值范围
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/06 18:53:19
![已知x,y满足x²+y²+4x-2y=0.求x²+y²的取值范围](/uploads/image/z/12954914-26-4.jpg?t=%E5%B7%B2%E7%9F%A5x%2Cy%E6%BB%A1%E8%B6%B3x%26%23178%3B%2By%26%23178%3B%2B4x-2y%3D0.%E6%B1%82x%26%23178%3B%2By%26%23178%3B%E7%9A%84%E5%8F%96%E5%80%BC%E8%8C%83%E5%9B%B4)
x){}K+t*^b
5eCskJ(mRkTiklcY-O=m-6IE3LΆn{BNR Rη55~149P!X83*txn]mO',/.H̳9 tJ
已知x,y满足x²+y²+4x-2y=0.求x²+y²的取值范围
已知x,y满足x²+y²+4x-2y=0.求x²+y²的取值范围
已知x,y满足x²+y²+4x-2y=0.求x²+y²的取值范围
(x+2)²+(y-1)²=5
x=-2+√5cosθ
y=1+√5sinθ
知道怎么算了吧