JEE Main 2019 Mathematics question

MathematicsLimitJEE Main 2019

Let f: R → R be a continuously differentiable function such that f(2) = 6 and . If , then is equal to:

Answer: (A)

Solution

L'Hospital: 4f(2)f′(2) = 4 × 216/48 = 18.

Question ID VK-010193