\(x^2-7x+3=0\) के मूलों का अंतर क्या है?
What is the difference between the roots of \(x^2-7x+3=0\)?
Explanation opens after your attempt
A. \(\sqrt{37}\)
Concept
Here (D=(-7)2-4(1)(3)=37), so the difference of roots is \(\frac{\sqrt{D}}{|a|}=\sqrt{37}\). In exams, the difference of roots can be found directly from (D).
Why this answer is correct
The correct answer is A. \(\sqrt{37}\). Here (D=(-7)2-4(1)(3)=37), so the difference of roots is \(\frac{\sqrt{D}}{|a|}=\sqrt{37}\). In exams, the difference of roots can be found directly from (D).
Exam Tip
यहां (D=(-7)2-4(1)(3)=37), इसलिए मूलों का अंतर \(\frac{\sqrt{D}}{|a|}=\sqrt{37}\) है। परीक्षा में मूलों का अंतर सीधे (D) से मिल सकता है।
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