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 10MathematicsSetsPower Set and SubsetsEasyLevel 7

Which set is a subset of R and has exactly one element?

Advertisement

Answer and explanation

Correct answer: {√2}

A singleton is a set containing exactly one element. Since √2 is a real number, the set {√2} is a subset of R and has precisely one member. The empty set has zero elements, the interval (0, 1) has infinitely many real elements, and {1, 2} has two elements. Thus option A satisfies both conditions.

Tags

setssingleton setreal numberssubsetsPower Set and SubsetsMathematicsClass 10 MCQ

Frequently asked questions

What is the correct answer to this question?

{√2}

Why is this the correct answer?

A singleton is a set containing exactly one element. Since √2 is a real number, the set {√2} is a subset of R and has precisely one member. The empty set has zero elements, the interval (0, 1) has infinitely many real elements, and {1, 2} has two elements. Thus option A satisfies both conditions.

Which subject and chapter does this question cover?

This is a Class 10 Mathematics question. Chapter: Sets. Topic: Power Set and Subsets.

Report question
Advertisement