\(5\sqrt{20}-2\sqrt{125}+\sqrt{45}\) का सरल रूप क्या है?
What is the simplified form of \(5\sqrt{20}-2\sqrt{125}+\sqrt{45}\)?
Explanation opens after your attempt
Correct Answer
D. \(3\sqrt{5}\)
Concept
\(5\sqrt{20}=10\sqrt{5}\), \(2\sqrt{125}=10\sqrt{5}\), and \( \sqrt{45}=3\sqrt{5} \). Therefore the result is \(3\sqrt{5}\).
Why this answer is correct
The correct answer is D. \(3\sqrt{5}\). \(5\sqrt{20}=10\sqrt{5}\), \(2\sqrt{125}=10\sqrt{5}\), and \( \sqrt{45}=3\sqrt{5} \). Therefore the result is \(3\sqrt{5}\).
Exam Tip
\(5\sqrt{20}=10\sqrt{5}\), \(2\sqrt{125}=10\sqrt{5}\), और \( \sqrt{45}=3\sqrt{5} \)। इसलिए परिणाम \(3\sqrt{5}\) है।
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