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
0 reads0 ratings0 helpful

A student claims that \(\sqrt{3}\) is rational because its square, \(3\), is a rational number. Which statement about this argument is correct?

Answer and explanation

Correct answer: The square of an irrational number can be rational, so this argument is invalid.

A rational square does not guarantee that the original number is rational. For example, \((\sqrt{3})^2=3\), yet \(\sqrt{3}\) is irrational. Option B makes this incorrect inference. Exam tip: check whether the number under a square root is a perfect square.

Related tags

Number SystemsIrrational NumbersSquare RootsProof Of IrrationalityMathematical ReasoningClass 9 MathematicsProof Of Irrationality Of Square Root 2 And Square Root 3Mathematics

Was this question useful?

No ratings yetWrite a review / Rate this question

Student Reviews

No published reviews yet.

Add Muft Shiksha to your Home Screen

In Safari, tap Share, then Add to Home Screen.