defence exam ITBP (Telecommunication) Head Constable Mock Test 2024 Mathematics Determinants Application of Determinants
For a point of inflection of y = f(x), which one of the following is correct?
1
\(\dfrac{dy}{dx}\) must be zero
2
\(\dfrac{d^2y}{dx^2}\) must be zero
3
\(\dfrac{dy}{dx}\) must be non-zero
4
\(\dfrac{d^2y}{dx^2}\) must be non-zero