Understanding Increasing and Decreasing Functions-Class 12 Math NCERT

Increasing and decreasing functions is explained in this problem. You find the intervals in which f is increasing or decreasing through this method.This is of use to Class 12 Math students NCERT and ISC. As an experienced educator, I find this method very useful. An interesting point to note is that when the coefficient of the highest degree term is negative, we multiply by a minus sign.