19 The interval in which y = x2 e–x is increasing is
(A) (– ∞, ∞)
(B) (– 2, 0)
(C) (2, ∞)
(D) (0, 2)
6 4  Maxima and Minima
In this section, we will use the concept of derivatives to calculate the maximum or
minimum values of  various functions In fact, we will find the ‘turning points’ of the
graph of a function and thus find points at which the graph reaches its highest (or
Rationalised 2023-24
 MATHEMATICS
160
lowest) locally