JEE Main 2025 Mathematics question
Let f : R → R be a polynomial function of degree four having extreme values at x = 4 and x = 5. If , then f(2) is equal to
Answer: (2)
Solution
d=e=0, c=5, solving f'(4)=0 and f'(5)=0 gives a=1/8, b=-3/2. f(2)=10.