The interval in which y = x2 e–x is increasing is
(A) (– ∞, ∞)
(B) (– 2, 0)
(C) (2, ∞)
(D) (0, 2)
∴ f is strictly increasing on (0, 2).
Hence, f is strictly increasing in interval (0, 2).
The correct answer is D.
Is there an error in this question or solution?
Solution The Interval in Which Y = X2 E–X is Increasing is Concept: Increasing and Decreasing Functions.