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📐 Mathematics  ·  Relations and Functions  ·  JEE

A = {x : |x - 2| < 3}. In interval notation, A is:

Answer: (-1, 5).

  • A (-1, 5)
  • B [-1, 5]
  • C (0, 5)
  • D (-3, 3)

Correct answer: A. (-1, 5)

Explanation: Solving absolute value inequality: |x-2|<3 ⟺ -3 < x-2 < 3 (equivalent compound inequality). Add 2 throughout: -3+2 < x < 3+2, giving -1 < x < 5. This is the open interval (-1,5). Answer: A = (-1, 5)

Concept context

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

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