यदि (x=2) पर \(kx^2-5x+3\) का मान (9) है, तो (k) क्या होगा?
If the value of \(kx^2-5x+3\) at (x=2) is (9), what is (k)?
Explanation opens after your attempt
C. (4)
Concept
Substitution gives (4k-10+3=9). Thus (4k=16) and (k=4).
Why this answer is correct
The correct answer is C. (4). Substitution gives (4k-10+3=9). Thus (4k=16) and (k=4).
Exam Tip
मान रखने पर (4k-10+3=9) मिलता है। इससे (4k=16) और (k=4) होगा।
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