यदि \(kx^2-4x+2=0\) में मूलों का गुणनफल (1) है, तो (k) का मान क्या है?
If the product of roots of \(kx^2-4x+2=0\) is (1), what is the value of (k)?
Explanation opens after your attempt
B. (2)
Concept
The product of roots is \(\frac{2}{k}=1\), so (k=2). Use (c/a) for the product formula.
Why this answer is correct
The correct answer is B. (2). The product of roots is \(\frac{2}{k}=1\), so (k=2). Use (c/a) for the product formula.
Exam Tip
मूलों का गुणनफल \(\frac{2}{k}=1\), इसलिए (k=2) है। गुणनफल के सूत्र में (c/a) प्रयोग करें।
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