यदि (p(x)=\(a^2-4\)x^{11}+(a-2)x-7+5x-3-1) की डिग्री (3) है, तो (a) का सही मान कौन सा है?
If the degree of (p(x)=\(a^2-4\)x^{11}+(a-2)x-7+5x-3-1) is (3), which value of (a) is correct?
Explanation opens after your attempt
C. (a=2)
Concept
For degree (3), both \(x^{11}\) and \(x^7\) terms must vanish. At (a=2), both higher-term coefficients become (0).
Why this answer is correct
The correct answer is C. (a=2). For degree (3), both \(x^{11}\) and \(x^7\) terms must vanish. At (a=2), both higher-term coefficients become (0).
Exam Tip
डिग्री (3) के लिए \(x^{11}\) और \(x^7\) दोनों पद हटने चाहिए। (a=2) पर दोनों उच्च पदों के गुणांक (0) हो जाते हैं।
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