किस मान पर ((w-9)x^{12}+\(w^2-81\)x-8+6x-4-5) की डिग्री (4) होगी?

For which value will ((w-9)x^{12}+\(w^2-81\)x-8+6x-4-5) have degree (4)?

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

A. (w=9)

Step 1

Concept

For degree (4), both \(x^{12}\) and \(x^8\) terms must vanish. At (w=9), both coefficients become (0).

Step 2

Why this answer is correct

The correct answer is A. (w=9). For degree (4), both \(x^{12}\) and \(x^8\) terms must vanish. At (w=9), both coefficients become (0).

Step 3

Exam Tip

डिग्री (4) के लिए \(x^{12}\) और \(x^8\) दोनों पद हटने चाहिए। (w=9) पर दोनों गुणांक (0) हो जाते हैं।

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किस मान पर ((w-9)x^{12}+\(w^2-81\)x-8+6x-4-5) की डिग्री (4) होगी? / For which value will ((w-9)x^{12}+\(w^2-81\)x-8+6x-4-5) have degree (4)?

Correct Answer: A. (w=9). Explanation: डिग्री (4) के लिए \(x^{12}\) और \(x^8\) दोनों पद हटने चाहिए। (w=9) पर दोनों गुणांक (0) हो जाते हैं। / For degree (4), both \(x^{12}\) and \(x^8\) terms must vanish. At (w=9), both coefficients become (0).

Which concept should I revise for this Mathematics MCQ?

For degree (4), both \(x^{12}\) and \(x^8\) terms must vanish. At (w=9), both coefficients become (0).

What exam hint can help solve this Mathematics question?

डिग्री (4) के लिए \(x^{12}\) और \(x^8\) दोनों पद हटने चाहिए। (w=9) पर दोनों गुणांक (0) हो जाते हैं।