Hard Mathematics Quadratic Equations Class 10 Level 33

((k-2)x-2+4x+1=0) की जड़ें समान हों, तो (k) का मान क्या है?

If ((k-2)x-2+4x+1=0) has equal roots, what is (k)?

Explanation opens after your attempt
Correct Answer

A. (6)

Step 1

Concept

For equal roots, put (D=0). From (16-4(k-2)=0), we get (k=6).

Step 2

Why this answer is correct

The correct answer is A. (6). For equal roots, put (D=0). From (16-4(k-2)=0), we get (k=6).

Step 3

Exam Tip

समान जड़ों के लिए (D=0) रखें। (16-4(k-2)=0) से (k=6) मिलता है।

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Mathematics Answer, Explanation and Revision Hints

((k-2)x-2+4x+1=0) की जड़ें समान हों, तो (k) का मान क्या है? / If ((k-2)x-2+4x+1=0) has equal roots, what is (k)?

Correct Answer: A. (6). Explanation: समान जड़ों के लिए (D=0) रखें। (16-4(k-2)=0) से (k=6) मिलता है। / For equal roots, put (D=0). From (16-4(k-2)=0), we get (k=6).

Which concept should I revise for this Mathematics MCQ?

For equal roots, put (D=0). From (16-4(k-2)=0), we get (k=6).

What exam hint can help solve this Mathematics question?

समान जड़ों के लिए (D=0) रखें। (16-4(k-2)=0) से (k=6) मिलता है।

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