यदि \(a=\sqrt{18}\) और \(b=\sqrt{2}\) तो (a+b) क्या है?
If \(a=\sqrt{18}\) and \(b=\sqrt{2}\), what is (a+b)?
Explanation opens after your attempt
Correct Answer
D. \(5\sqrt{2}\)
Concept
\(\sqrt{18}=3\sqrt{2}\). Thus \(3\sqrt{2}+\sqrt{2}=4\sqrt{2}\). Simplify first in exams.
Why this answer is correct
The correct answer is D. \(5\sqrt{2}\). \(\sqrt{18}=3\sqrt{2}\). Thus \(3\sqrt{2}+\sqrt{2}=4\sqrt{2}\). Simplify first in exams.
Exam Tip
\(\sqrt{18}=3\sqrt{2}\)। इसलिए \(3\sqrt{2}+\sqrt{2}=4\sqrt{2}\)। परीक्षा में पहले सरल करें।
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