\(\sqrt{500}-\sqrt{125}\) का मान क्या है?
What is the value of \(\sqrt{500}-\sqrt{125}\)?
Explanation opens after your attempt
A. \(5\sqrt{5}\)
Simple Explanation
\(\sqrt{500}=\sqrt{100\times5}=10\sqrt{5}\) और \(\sqrt{125}=\sqrt{25\times5}=5\sqrt{5}\)। अतः \(\sqrt{500}-\sqrt{125}=10\sqrt{5}-5\sqrt{5}=5\sqrt{5}\)। \(10\sqrt{5}\) केवल \(\sqrt{500}\) का मान है, घटाने के बाद का नहीं। परीक्षा टिप: वर्गमूल वाले पदों को घटाने से पहले उनके अंदर के पूर्ण वर्ग गुणनखंड को अलग करें। / \(\sqrt{500}=\sqrt{100\times5}=10\sqrt{5}\) and \(\sqrt{125}=\sqrt{25\times5}=5\sqrt{5}\). Therefore, \(\sqrt{500}-\sqrt{125}=10\sqrt{5}-5\sqrt{5}=5\sqrt{5}\). \(10\sqrt{5}\) is only the value of \(\sqrt{500}\), not the result after subtraction. Exam tip: before subtracting surds, extract perfect-square factors from each radicand.
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