共50条信息
己知椭圆\(C\):\(\dfrac{{{x}^{2}}}{{{a}^{2}}}+\dfrac{{{y}^{2}}}{{{b}^{2}}}=1(a > b > 0)\)的左、右焦点为\(F_{1}\),\(F_{2}\),左、右顶点为\(M\),\(N\),过\(F_{2}\)的直线\(l\)交\(C\)于\(A\),\(B\)两点\((\)异于\(M\)、\(N)\),\(\triangle AF_{1}B\)的周长为\(4\sqrt{3}\),且直线\(AM\)与\(AN\)的斜率之积为\(-\dfrac{2}{3}\),则\(C\)的方程为\((\) \()\).
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