椭圆x^2/a^2+y^2/b^2=1(a>b>0)与直线x+y=1交于P.Q两点,且OP垂直OQ,其中0为坐标原点(1) 求1/a^2+1/b^2的值(2)若椭圆离心率e满足根号3/3小于等于e小于等于根号2/2,求椭圆长轴的取值范围
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/29 00:28:43
![椭圆x^2/a^2+y^2/b^2=1(a>b>0)与直线x+y=1交于P.Q两点,且OP垂直OQ,其中0为坐标原点(1) 求1/a^2+1/b^2的值(2)若椭圆离心率e满足根号3/3小于等于e小于等于根号2/2,求椭圆长轴的取值范围](/uploads/image/z/6860867-59-7.jpg?t=%E6%A4%AD%E5%9C%86x%5E2%2Fa%5E2%2By%5E2%2Fb%5E2%3D1%28a%3Eb%3E0%29%E4%B8%8E%E7%9B%B4%E7%BA%BFx%2By%3D1%E4%BA%A4%E4%BA%8EP.Q%E4%B8%A4%E7%82%B9%2C%E4%B8%94OP%E5%9E%82%E7%9B%B4OQ%2C%E5%85%B6%E4%B8%AD0%E4%B8%BA%E5%9D%90%E6%A0%87%E5%8E%9F%E7%82%B9%281%29+%E6%B1%821%2Fa%5E2%2B1%2Fb%5E2%E7%9A%84%E5%80%BC%EF%BC%882%EF%BC%89%E8%8B%A5%E6%A4%AD%E5%9C%86%E7%A6%BB%E5%BF%83%E7%8E%87e%E6%BB%A1%E8%B6%B3%E6%A0%B9%E5%8F%B73%2F3%E5%B0%8F%E4%BA%8E%E7%AD%89%E4%BA%8Ee%E5%B0%8F%E4%BA%8E%E7%AD%89%E4%BA%8E%E6%A0%B9%E5%8F%B72%2F2%2C%E6%B1%82%E6%A4%AD%E5%9C%86%E9%95%BF%E8%BD%B4%E7%9A%84%E5%8F%96%E5%80%BC%E8%8C%83%E5%9B%B4)
xTn@9B
]J_0܈F*
sTJ$U%i7/tfmi"a{fy3rv>
W+\5)fKd5JEcnDs`!z>&6Iŧwã-yуh
>JJP)QD(Њ0BF 蹄גZ@2[d&Mj