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 10MathematicsSetsSets and their representationsMediumLevel 2

What is the roster form of B = {x : x ∈ N and x² < 50}?

Advertisement

Answer and explanation

Correct answer: B = {1, 2, 3, 4, 5, 6, 7}

For natural numbers, test the positive integers against x² < 50. The values 1 through 7 work because 7² = 49, which is less than 50. The next natural number, 8, does not work because 8² = 64, which is greater than 50. Hence the roster is {1, 2, 3, 4, 5, 6, 7}.

Tags

setsroster-formnatural-numbersinequalitySets and their representationsMathematicsClass 10 MCQ

Frequently asked questions

What is the correct answer to this question?

B = {1, 2, 3, 4, 5, 6, 7}

Why is this the correct answer?

For natural numbers, test the positive integers against x² < 50. The values 1 through 7 work because 7² = 49, which is less than 50. The next natural number, 8, does not work because 8² = 64, which is greater than 50. Hence the roster is {1, 2, 3, 4, 5, 6, 7}.

Which subject and chapter does this question cover?

This is a Class 10 Mathematics question. Chapter: Sets. Topic: Sets and their representations.

Report question
Advertisement