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)?
Explanation opens after your attempt
A. (w=9)
Concept
For degree (4), both \(x^{12}\) and \(x^8\) terms must vanish. At (w=9), both coefficients become (0).
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).
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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