यदि \(a=\sqrt{18}-\sqrt{8}\) तो (a) का सरल रूप क्या है?
If \(a=\sqrt{18}-\sqrt{8}\) then what is the simplified form of (a)?
Explanation opens after your attempt
Correct Answer
A. \(\sqrt{2}\)
Concept
\(\sqrt{18}=3\sqrt{2}\) and \(\sqrt{8}=2\sqrt{2}\). The difference is \(\sqrt{2}\).
Why this answer is correct
The correct answer is A. \(\sqrt{2}\). \(\sqrt{18}=3\sqrt{2}\) and \(\sqrt{8}=2\sqrt{2}\). The difference is \(\sqrt{2}\).
Exam Tip
\(\sqrt{18}=3\sqrt{2}\) और \(\sqrt{8}=2\sqrt{2}\)। अंतर \(\sqrt{2}\) है।
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