किस समीकरण के मूलों का गुणनफल ऋणात्मक होगा?
Which equation will have a negative product of roots?
Explanation opens after your attempt
Correct Answer
A. \(2x^2+3x-5=0\)
Concept
The product of roots is \(\frac{c}{a}\). In the first option, \(\frac{-5}{2}<0\), so the product is negative.
Why this answer is correct
The correct answer is A. \(2x^2+3x-5=0\). The product of roots is \(\frac{c}{a}\). In the first option, \(\frac{-5}{2}<0\), so the product is negative.
Exam Tip
मूलों का गुणनफल \(\frac{c}{a}\) है। पहले विकल्प में \(\frac{-5}{2}<0\), इसलिए गुणनफल ऋणात्मक है।
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