👉 Learn how to graph a secant function. To graph a secant function, we start with the cosine graph by first determining the ...

正割法是近似的牛顿切线法，把求导用斜率代替，用切线不断逼近函数的单根。

Learn how to solve problems with secant lines. A secant line is a line that intersects a circle at exactly 2 points in ...