Medium Mathematics Quadratic Equations Class 10 Level 28

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
Correct Answer

B. (2)

Step 1

Concept

The product of roots is \(\frac{2}{k}=1\), so (k=2). Use (c/a) for the product formula.

Step 2

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.

Step 3

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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Mathematics Answer, Explanation and Revision Hints

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)?

Correct Answer: B. (2). Explanation: मूलों का गुणनफल \(\frac{2}{k}=1\), इसलिए (k=2) है। गुणनफल के सूत्र में (c/a) प्रयोग करें। / The product of roots is \(\frac{2}{k}=1\), so (k=2). Use (c/a) for the product formula.

Which concept should I revise for this Mathematics MCQ?

The product of roots is \(\frac{2}{k}=1\), so (k=2). Use (c/a) for the product formula.

What exam hint can help solve this Mathematics question?

मूलों का गुणनफल \(\frac{2}{k}=1\), इसलिए (k=2) है। गुणनफल के सूत्र में (c/a) प्रयोग करें।

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