JEE Main 2020 Mathematics question
Let f(x) be a polynomial of degree 3 such that f(– 1) = 10, f(1) = – 6, f(x) has a critical point at x = – 1 and f '(x) has a critical point at x = 1. Then f(x) has a local minima at x = .
Answer: 3
Let f(x) be a polynomial of degree 3 such that f(– 1) = 10, f(1) = – 6, f(x) has a critical point at x = – 1 and f '(x) has a critical point at x = 1. Then f(x) has a local minima at x = .