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?

Author: Muft Shiksha Editorial Team Published:
Explanation opens after your attempt
Correct Answer

C. (a=2)

Step 1

Concept

For degree (3), both \(x^{11}\) and \(x^7\) terms must vanish. At (a=2), both higher-term coefficients become (0).

Step 2

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).

Step 3

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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Mathematics Answer, Explanation and Revision Hints

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?

Correct Answer: C. (a=2). Explanation: 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। / For degree (3), both \(x^{11}\) and \(x^7\) terms must vanish. At (a=2), both higher-term coefficients become (0).

Which concept should I revise for this Mathematics MCQ?

For degree (3), both \(x^{11}\) and \(x^7\) terms must vanish. At (a=2), both higher-term coefficients become (0).

What exam hint can help solve this Mathematics question?

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।