समीकरण \(5x^2-18x+9=0\) के मूलों का योग और गुणनफल क्रमशः क्या हैं?
For \(5x^2-18x+9=0\), what are the sum and product of roots respectively?
Explanation opens after your attempt
A. \(\frac{18}{5}\) और \(\frac{9}{5}\)\(\frac{18}{5}\) and \(\frac{9}{5}\)
Concept
The sum is \(-\frac{b}{a}=\frac{18}{5}\) and the product is \(\frac{c}{a}=\frac{9}{5}\). Identify (a), (b), and (c) first.
Why this answer is correct
The correct answer is A. \(\frac{18}{5}\) और \(\frac{9}{5}\) / \(\frac{18}{5}\) and \(\frac{9}{5}\). The sum is \(-\frac{b}{a}=\frac{18}{5}\) and the product is \(\frac{c}{a}=\frac{9}{5}\). Identify (a), (b), and (c) first.
Exam Tip
योग \(-\frac{b}{a}=\frac{18}{5}\) और गुणनफल \(\frac{c}{a}=\frac{9}{5}\) है। पहले (a), (b), (c) पहचानें।
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