椭圆x^2/a^2+y^2/b^2=1 (a>b>0)的离心率e=√2/2,点A是椭圆上的一点,A到两焦点的距离之和为41.求椭圆C的方程.2.椭圆C上一动点P(X0,Y0)关于直线y=2x的对称点P1(X1,Y1),求3X1-4Y1的取值范围
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![椭圆x^2/a^2+y^2/b^2=1 (a>b>0)的离心率e=√2/2,点A是椭圆上的一点,A到两焦点的距离之和为41.求椭圆C的方程.2.椭圆C上一动点P(X0,Y0)关于直线y=2x的对称点P1(X1,Y1),求3X1-4Y1的取值范围](/uploads/image/z/8425031-23-1.jpg?t=%E6%A4%AD%E5%9C%86x%5E2%2Fa%5E2%2By%5E2%2Fb%5E2%3D1+%28a%3Eb%3E0%29%E7%9A%84%E7%A6%BB%E5%BF%83%E7%8E%87e%3D%E2%88%9A2%2F2%2C%E7%82%B9A%E6%98%AF%E6%A4%AD%E5%9C%86%E4%B8%8A%E7%9A%84%E4%B8%80%E7%82%B9%2CA%E5%88%B0%E4%B8%A4%E7%84%A6%E7%82%B9%E7%9A%84%E8%B7%9D%E7%A6%BB%E4%B9%8B%E5%92%8C%E4%B8%BA41.%E6%B1%82%E6%A4%AD%E5%9C%86C%E7%9A%84%E6%96%B9%E7%A8%8B.2.%E6%A4%AD%E5%9C%86C%E4%B8%8A%E4%B8%80%E5%8A%A8%E7%82%B9P%28X0%2CY0%29%E5%85%B3%E4%BA%8E%E7%9B%B4%E7%BA%BFy%3D2x%E7%9A%84%E5%AF%B9%E7%A7%B0%E7%82%B9P1%28X1%2CY1%29%2C%E6%B1%823X1-4Y1%E7%9A%84%E5%8F%96%E5%80%BC%E8%8C%83%E5%9B%B4)
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