📐 Mathematics · Relations and Functions · JEE

If f(x) = 2x + 3 and g(x) = x² − 1, then (f ∘ g)(2) equals:

Answer: 9.

Correct answer: B. 9

Explanation: g(2) = 3, then f(3) = 2·3 + 3 = 9.

Concept context

Ordered pairs, Cartesian products, types of relations and functions, domain and range. Foundation for calculus and Class 12 algebra.