Let and . Then,

Maths Complex Number Skill Builder Single Correct MCQ

Published by: CGP EDU Academic Team

Published on: August 12, 2026

Let and . Then,

is an empty set

Contains exactly two elements

Contains exactly three elements

is an infinite set

Text Solution

Verified by Experts

The correct answer is:

Here,
which represents two concentric circles and having centre and radii 1 and 2 respectively.

Also, also represents circle with centre and radius 1 .
So, from figure, has all the elements which lie on boundary .
So, is an infinite set.

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