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通过对有心圆锥曲线焦点三角形进行探究,得到有心圆锥曲线焦点三角形的面积公式,举例说明其在圆锥曲线解题中的应用.
By investigating the focus triangle of the conic curve of concentric curve, the area formula of the conic triangle of concentric curve of concentric curve is obtained, and the application of conic curve solving is illustrated.