JEE Main 2019 Mathematics question
If and are respectively the sets of local minimum and local maximum points of the function, , x ∈ R, then:
Answer: (C)
Solution
; sign changes −,+,−,+ ⇒ minima at −2, 1 and maximum at 0.
If and are respectively the sets of local minimum and local maximum points of the function, , x ∈ R, then:
; sign changes −,+,−,+ ⇒ minima at −2, 1 and maximum at 0.