यदि (x-2+(2k-1)x+k=0) में (x=1) मूल है, तो (k) का मान क्या है?
If (x=1) is a root of (x-2+(2k-1)x+k=0), what is the value of (k)?
Explanation opens after your attempt
Correct Answer
A. (0)
Concept
Putting (x=1) gives (1+2k-1+k=0). Thus (3k=0), so (k=0).
Why this answer is correct
The correct answer is A. (0). Putting (x=1) gives (1+2k-1+k=0). Thus (3k=0), so (k=0).
Exam Tip
(x=1) रखने पर (1+2k-1+k=0) मिलता है। इससे (3k=0), इसलिए (k=0)।
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