CUET · MATHS · PYQ PAPER 2025
If \(f(x)=|x|+|x-5|\), then which of the following statements are TRUE?
(A) \(f\) is a continuous function everywhere
(B) \(f\) is a continuous function except x = 5 and x = 0
(C) \(f\) is a continuous function except x = 0 but not differentiable at x = 5
(D) \(f\) is a continuous function everywhere but not differentiable at x = 0 and x = 5
Choose the correct answer from the options given below:
- A (A) and (B) only
- B (B) and (C) only
- C (A) and (D) only
- D (B) and (D) only
Answer & Solution
Correct Answer
(C) (A) and (D) only
Step-by-step Solution
Detailed explanation
\(f(x)=|x|+|x-5|\). The sum of continuous functions is continuous. \(|x|\) and \(|x-5|\) are continuous everywhere. Therefore, \(f(x)\) is continuous everywhere. Statement (A) is TRUE. To check differentiability, evaluate \(f'(x)\) in intervals: For \(x For \(0 For…
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