यदि (p(x)=(a-5)x^{12}+\(a^2-25\)x-8+7x-2-3) की डिग्री (2) है, तो (a) का सही मान कौन सा है?

If the degree of (p(x)=(a-5)x^{12}+\(a^2-25\)x-8+7x-2-3) is (2), which value of (a) is correct?

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

A. (a=5)

Step 1

Concept

For degree (2), both \(x^{12}\) and \(x^8\) terms must vanish. At (a=5), both higher-term coefficients become (0).

Step 2

Why this answer is correct

The correct answer is A. (a=5). For degree (2), both \(x^{12}\) and \(x^8\) terms must vanish. At (a=5), both higher-term coefficients become (0).

Step 3

Exam Tip

डिग्री (2) के लिए \(x^{12}\) और \(x^8\) दोनों पद हटने चाहिए। (a=5) पर दोनों उच्च पदों के गुणांक (0) हो जाते हैं।

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Mathematics Answer, Explanation and Revision Hints

यदि (p(x)=(a-5)x^{12}+\(a^2-25\)x-8+7x-2-3) की डिग्री (2) है, तो (a) का सही मान कौन सा है? / If the degree of (p(x)=(a-5)x^{12}+\(a^2-25\)x-8+7x-2-3) is (2), which value of (a) is correct?

Correct Answer: A. (a=5). Explanation: डिग्री (2) के लिए \(x^{12}\) और \(x^8\) दोनों पद हटने चाहिए। (a=5) पर दोनों उच्च पदों के गुणांक (0) हो जाते हैं। / For degree (2), both \(x^{12}\) and \(x^8\) terms must vanish. At (a=5), both higher-term coefficients become (0).

Which concept should I revise for this Mathematics MCQ?

For degree (2), both \(x^{12}\) and \(x^8\) terms must vanish. At (a=5), both higher-term coefficients become (0).

What exam hint can help solve this Mathematics question?

डिग्री (2) के लिए \(x^{12}\) और \(x^8\) दोनों पद हटने चाहिए। (a=5) पर दोनों उच्च पदों के गुणांक (0) हो जाते हैं।