यदि (q(x)=\(k^2-9\)x-6+(k-3)x-4+2x-2) और (k=3), तो (q(x)) की डिग्री क्या है?

If (q(x)=\(k^2-9\)x-6+(k-3)x-4+2x-2) and (k=3), what is the degree of (q(x))?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

D. (2)

Step 1

Concept

At (k=3), both \(x^6\) and \(x^4\) terms vanish. The remaining highest power is (2).

Step 2

Why this answer is correct

The correct answer is D. (2). At (k=3), both \(x^6\) and \(x^4\) terms vanish. The remaining highest power is (2).

Step 3

Exam Tip

(k=3) पर \(x^6\) और \(x^4\) दोनों पद हट जाते हैं। बची हुई सबसे बड़ी घात (2) है।

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Mathematics Answer, Explanation and Revision Hints

यदि (q(x)=\(k^2-9\)x-6+(k-3)x-4+2x-2) और (k=3), तो (q(x)) की डिग्री क्या है? / If (q(x)=\(k^2-9\)x-6+(k-3)x-4+2x-2) and (k=3), what is the degree of (q(x))?

Correct Answer: D. (2). Explanation: (k=3) पर \(x^6\) और \(x^4\) दोनों पद हट जाते हैं। बची हुई सबसे बड़ी घात (2) है। / At (k=3), both \(x^6\) and \(x^4\) terms vanish. The remaining highest power is (2).

Which concept should I revise for this Mathematics MCQ?

At (k=3), both \(x^6\) and \(x^4\) terms vanish. The remaining highest power is (2).

What exam hint can help solve this Mathematics question?

(k=3) पर \(x^6\) और \(x^4\) दोनों पद हट जाते हैं। बची हुई सबसे बड़ी घात (2) है।