\(\sqrt{847}-\sqrt{363}+\sqrt{147}\) का सरल रूप क्या है?
What is the simplified form of \(\sqrt{847}-\sqrt{363}+\sqrt{147}\)?
Explanation opens after your attempt
B. \(9\sqrt{7}\)
Concept
\(\sqrt{847}=11\sqrt{7}\), \(\sqrt{363}=7\sqrt{7}\), and \(\sqrt{147}=3\sqrt{7}\). So the result is \(11\sqrt{7}-7\sqrt{7}+3\sqrt{7}=7\sqrt{7}\).
Why this answer is correct
The correct answer is B. \(9\sqrt{7}\). \(\sqrt{847}=11\sqrt{7}\), \(\sqrt{363}=7\sqrt{7}\), and \(\sqrt{147}=3\sqrt{7}\). So the result is \(11\sqrt{7}-7\sqrt{7}+3\sqrt{7}=7\sqrt{7}\).
Exam Tip
\(\sqrt{847}=11\sqrt{7}\), \(\sqrt{363}=7\sqrt{7}\) और \(\sqrt{147}=3\sqrt{7}\) है। इसलिए परिणाम \(7\sqrt{7}\) नहीं, \(11\sqrt{7}-7\sqrt{7}+3\sqrt{7}=7\sqrt{7}\) है।
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