यदि (q(x)=(k-3)2x^{12}+\(k^2-9\)x-7+6x-2-5) और (k=3), तो (q(x)) की डिग्री क्या है?
If (q(x)=(k-3)2x^{12}+\(k^2-9\)x-7+6x-2-5) and (k=3), what is the degree of (q(x))?
Explanation opens after your attempt
C. (2)
Concept
Putting (k=3) removes both \(x^{12}\) and \(x^7\) terms. The remaining \(6x^2-5\) has degree (2).
Why this answer is correct
The correct answer is C. (2). Putting (k=3) removes both \(x^{12}\) and \(x^7\) terms. The remaining \(6x^2-5\) has degree (2).
Exam Tip
(k=3) रखने पर \(x^{12}\) और \(x^7\) दोनों पद हट जाते हैं। बचा \(6x^2-5\) है जिसकी डिग्री (2) है।
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