Muft Shiksha
Update

Muft Shiksha™ एक 100% Free Education Portal है 🇮🇳, जिसका उद्देश्य Class 9–12 के हर विद्यार्थी तक High-Quality Education को पूरी तरह मुफ्त पहुँचाना है। 🇮🇳 हम मानते हैं कि अच्छी शिक्षा किसी student की आर्थिक स्थिति पर निर्भर नहीं होनी चाहिए। 🇮🇳 हर विद्यार्थी को वही Quality Study Material, MCQs, Quizzes, Exam Preparation, Concept-Based Learning और Bilingual Support मिलना चाहिए, जो आमतौर पर महंगी Coaching या Premium Platforms में मिलता है। Muft Shiksha™ 🇮🇳 इसी सोच के साथ बनाया गया है

Subjects
Class 10MathematicsSetsThe Empty Set, Finite and Infinite Sets, Equal SetsEasyLevel 4

How many elements are in the set A = {∅}?

Advertisement

Answer and explanation

Correct answer: 1

The notation A = {∅} means that the empty set itself is enclosed in braces and is being treated as one element of A. Thus, A has exactly one element, namely ∅, and its cardinality is |A| = 1. This must be distinguished from A = ∅, which has no elements. Therefore, option B is correct.

Tags

setsempty-setcardinalitysingleton-setThe Empty SetFinite and Infinite SetsEqual Setsthe empty set finite and infinite sets equal setsMathematicsClass 10 MCQ

Frequently asked questions

What is the correct answer to this question?

1

Why is this the correct answer?

The notation A = {∅} means that the empty set itself is enclosed in braces and is being treated as one element of A. Thus, A has exactly one element, namely ∅, and its cardinality is |A| = 1. This must be distinguished from A = ∅, which has no elements. Therefore, option B is correct.

Which subject and chapter does this question cover?

This is a Class 10 Mathematics question. Chapter: Sets. Topic: The Empty Set, Finite and Infinite Sets, Equal Sets.

Report question
Advertisement