\(\sqrt{98}-\sqrt{50}\) का सरल रूप कौन-सा है?
Which is the simplified form of \(\sqrt{98}-\sqrt{50}\)?
Explanation opens after your attempt
Correct Answer
C. \(2\sqrt{2}\)
Concept
\(\sqrt{98}=7\sqrt{2}\) and \(\sqrt{50}=5\sqrt{2}\), so the difference is \(2\sqrt{2}\). First take out perfect-square factors.
Why this answer is correct
The correct answer is C. \(2\sqrt{2}\). \(\sqrt{98}=7\sqrt{2}\) and \(\sqrt{50}=5\sqrt{2}\), so the difference is \(2\sqrt{2}\). First take out perfect-square factors.
Exam Tip
\(\sqrt{98}=7\sqrt{2}\) और \(\sqrt{50}=5\sqrt{2}\), इसलिए अंतर \(2\sqrt{2}\) है। पहले पूर्ण वर्ग गुणनखंड निकालें।
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