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通过人教版A版选修2-2第一章的学习,我们知道函数在某点处的导数就是函数在该点处的曲线的斜率,下面借助这一重要依据再利用直线的点斜式方程我们来研究一下有关曲线的切线问题.
Through the teaching of the first chapter of elective 2-2 in the PEP version A2, we know that the derivative of the function at a certain point is the slope of the curve at that point of the function. Here we use this important basis to re-use the linear point-tilt equation. Let’s examine the tangent problem of the curve.