MATHEMATICS · Single correct · A Level · Mathematics · Algebra and Functions · Algebra and Functions
Problem
The function f(x)=∣x∣+x∣x∣ is
(a) Continuous at the origin
(b) Discontinuous at the origin because ∣x∣ is discontinuous there
(c) Discontinuous at the origin because x∣x∣ is discontinuous there
(d) Discontinuous at the origin because both ∣x∣ and x∣x∣ are discontinuous there