The function of y = x2 e-x is decreasing in the interval
A. (0, 2)
B. (2, ∞)
C. (-∞, 0)
D. (-∞, 0) ∪ (2, ∞)
Answer:D
The function of y = x2 e-x is decreasing in the interval
A. (0, 2) B. (2, ∞) C. (-∞, 0) D. (-∞, 0) ∪ (2, ∞)