यदि (p(x)=(a+2)x-7+4x-3-5) और (a=-2), तो (p(x)) की डिग्री क्या है?
If (p(x)=(a+2)x-7+4x-3-5) and (a=-2), what is the degree of (p(x))?
Explanation opens after your attempt
C. (3)
Concept
Putting (a=-2) makes the coefficient of \(x^7\) equal to (0). The remaining highest power is (3).
Why this answer is correct
The correct answer is C. (3). Putting (a=-2) makes the coefficient of \(x^7\) equal to (0). The remaining highest power is (3).
Exam Tip
(a=-2) रखने पर \(x^7\) का गुणांक (0) हो जाता है। बची हुई सबसे बड़ी घात (3) है।
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