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圆锥曲线的方程都是二次方程,因而解决与此相关的问题时,往往涉及到较为复杂的代数运算,特别是含参问题的运算,有时极为复杂.这时如何采用合理手段简化运算,成为能否顺利解决这类问题的关键.一、数形结合简化运算例1已知椭圆x22+y2=1的右准线l与x轴相交于点E,过椭圆右焦点F的直
The equations of the conic section are all quadratic equations. Therefore, when solving problems related to this, it often involves more complex algebraic operations, especially operations involving parametric problems. Sometimes it is extremely complicated. How to use reasonable means to simplify the calculation and become The key to successfully solving this type of problem is as follows: 1. Example of combination of number and shape simplification calculation 1 Right-precision line l whose ellipse x22+y2=1 is known intersects the x-axis at point E, and the straight line passing through the right ellipse of the right ellipse F