कौन सा विकल्प \(\sqrt{5}+\sqrt{20}+\sqrt{45}+\sqrt{80}\) का सरल रूप है?
Which option is the simplified form of \(\sqrt{5}+\sqrt{20}+\sqrt{45}+\sqrt{80}\)?
Explanation opens after your attempt
A. \(12\sqrt{5}\)
Concept
The terms become \(\sqrt{5}+2\sqrt{5}+3\sqrt{5}+4\sqrt{5}\). The total is \(10\sqrt{5}\), so check the options carefully.
Why this answer is correct
The correct answer is A. \(12\sqrt{5}\). The terms become \(\sqrt{5}+2\sqrt{5}+3\sqrt{5}+4\sqrt{5}\). The total is \(10\sqrt{5}\), so check the options carefully.
Exam Tip
ये पद \(\sqrt{5}+2\sqrt{5}+3\sqrt{5}+4\sqrt{5}\) बनते हैं। कुल \(10\sqrt{5}\) नहीं बल्कि \(10\sqrt{5}\) है, विकल्पों को ध्यान से जाँचें।
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