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

What is the value of ( \sqrt{242}\div\sqrt{2} )?

Answer and explanation

Correct answer: (11)

The direct answer is B: \(11\). Both square roots have nonnegative values, and \(\sqrt{a}/\sqrt{b}=\sqrt{a/b}\) when the denominator is valid. Therefore \(\sqrt{242}/\sqrt2=\sqrt{242/2}=\sqrt{121}=11\). Equivalently, \(242=2\times121\), so \(\sqrt{242}=\sqrt2\times11\), and division by \(\sqrt2\) leaves 11. Option B is correct. Option A, 121, is the radicand after division, not its square root. Option C, \(\sqrt{240}\), comes from an incorrect subtraction-like operation and is not equal to the expression. Option D, 22, doubles the correct result and has no valid rule behind it. Remember that \(\sqrt{121}=11\), not 121. A useful check is numerical: \(\sqrt{242}\) is about 15.56 and \(\sqrt2\) about 1.41; their quotient is about 11. Memory cue: simplify inside the radical, then take the root.

Related tags

Real NumbersSurd DivisionSquare Root

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.