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利用抛物线的函数性,可以通过求导的办法计算切线斜率,下面我们就借鉴这个方法对过圆锥曲线上的定点的切线方程的求解进行推广。
Using the parabola function, the tangent slope can be calculated by the derivation method. Now we will use this method to generalize the solution of the fixed point tangent equation over the conic curve.