निम्नलिखित में से कौन-सा परिणाम परिमेय नहीं है?
Which of the following results is not rational?
Explanation opens after your attempt
C. \(\sqrt{2}+\sqrt{98}\)
Concept
\(\sqrt{98}=7\sqrt{2}\), so \(\sqrt{2}+\sqrt{98}=8\sqrt{2}\).
Why this answer is correct
\(8\sqrt{2}\) is irrational, so it is not rational.
Exam Tip
Simplify each option before deciding its nature. चरण 1: \(\sqrt{98}=7\sqrt{2}\), इसलिए \(\sqrt{2}+\sqrt{98}=8\sqrt{2}\)। चरण 2: \(8\sqrt{2}\) अपरिमेय है, इसलिए परिमेय नहीं है। चरण 3: हर विकल्प को सरल करने के बाद ही प्रकृति तय करें।
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