(\sqrt{5}\left\(\sqrt{125}-\sqrt{45}\right\)) का मान क्या है?
What is the value of (\sqrt{5}\left\(\sqrt{125}-\sqrt{45}\right\))?
Explanation opens after your attempt
Correct Answer
A. (10)
Concept
\(\sqrt{125}=5\sqrt{5}\) and \(\sqrt{45}=3\sqrt{5}\), so the bracket is \(2\sqrt{5}\). Multiplying by \(\sqrt{5}\) gives (10).
Why this answer is correct
The correct answer is A. (10). \(\sqrt{125}=5\sqrt{5}\) and \(\sqrt{45}=3\sqrt{5}\), so the bracket is \(2\sqrt{5}\). Multiplying by \(\sqrt{5}\) gives (10).
Exam Tip
\(\sqrt{125}=5\sqrt{5}\) और \(\sqrt{45}=3\sqrt{5}\), इसलिए कोष्ठक \(2\sqrt{5}\) है। \(\sqrt{5}\) से गुणा करने पर (10) मिलता है।
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