The set of all integers x such that |x – 3| < 2 is equal to
Answer & explanation
Correct answer: option 3
|x – 3| < 2 ⇒ 3 – 2 < x < 3 + 2 ⇒ 1 < x < 5
⇒ x = 2, 3, 4
∴ Required set = {2, 3, 4}
Alternative method
x = 1 ⇒ |x – 3| = |1 – 3| = |– 2| = 2 ≮ 2
∴ (a) and (b) are not correct
x = – 4 ⇒ |x – 3| = |– 4 – 3| = |– 2| = 7 ≮ 2
∴ (D) is not correct.
Hence (3) is the correct answer.