\(x^2-5x+2=0\) के मूलों का अंतर क्या है?
What is the difference between the roots of \(x^2-5x+2=0\)?
Explanation opens after your attempt
A. \(\sqrt{17}\)
Concept
Here (D=(-5)2-4(1)(2)=17), so the difference of roots is \(\frac{\sqrt{D}}{|a|}=\sqrt{17}\). In exams, the difference of roots can be found directly from (D).
Why this answer is correct
The correct answer is A. \(\sqrt{17}\). Here (D=(-5)2-4(1)(2)=17), so the difference of roots is \(\frac{\sqrt{D}}{|a|}=\sqrt{17}\). In exams, the difference of roots can be found directly from (D).
Exam Tip
यहां (D=(-5)2-4(1)(2)=17), इसलिए मूलों का अंतर \(\frac{\sqrt{D}}{|a|}=\sqrt{17}\) है। परीक्षा में मूलों का अंतर सीधे (D) से मिल सकता है।
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