((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
A. (6)
Concept
For equal roots, put (D=0). From (16-4(k-2)=0), we get (k=6).
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).
Exam Tip
समान जड़ों के लिए (D=0) रखें। (16-4(k-2)=0) से (k=6) मिलता है।
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