Function Increasing Decreasing Intervals (Jee M… | ExamDuo
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Application of Derivates
Medium
Function Increasing Decreasing Intervals
The function f (x) = x³ – 3x is :
SELECT ONE OPTION
A
increasing in (-∞ , -1) ∪ [1 , ∞] and decreasing in (-1 , 1)
B
decreasing in (-∞ , -1) ∪ [1 , ∞] and increasing in (-1 , 1)
C
increasing in (0 , ∞) and decreasing in (-∞ , 0)
D
decreasing in (0 , ∞) and increasing in (-∞ , 0)
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