यदि (A(x)=x^{10}+9) और (B(x)=-x^{10}+11x-7), तो (A(x)+B(x)) की डिग्री क्या है?

If (A(x)=x^{10}+9) and (B(x)=-x^{10}+11x-7), what is the degree of (A(x)+B(x))?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

B. (7)

Step 1

Concept

On adding, the \(x^{10}\) terms cancel and \(11x^7+9\) remains. Its degree is (7).

Step 2

Why this answer is correct

The correct answer is B. (7). On adding, the \(x^{10}\) terms cancel and \(11x^7+9\) remains. Its degree is (7).

Step 3

Exam Tip

जोड़ने पर \(x^{10}\) पद कटते हैं और \(11x^7+9\) बचता है। इसकी डिग्री (7) है।

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Mathematics Answer, Explanation and Revision Hints

यदि (A(x)=x^{10}+9) और (B(x)=-x^{10}+11x-7), तो (A(x)+B(x)) की डिग्री क्या है? / If (A(x)=x^{10}+9) and (B(x)=-x^{10}+11x-7), what is the degree of (A(x)+B(x))?

Correct Answer: B. (7). Explanation: जोड़ने पर \(x^{10}\) पद कटते हैं और \(11x^7+9\) बचता है। इसकी डिग्री (7) है। / On adding, the \(x^{10}\) terms cancel and \(11x^7+9\) remains. Its degree is (7).

Which concept should I revise for this Mathematics MCQ?

On adding, the \(x^{10}\) terms cancel and \(11x^7+9\) remains. Its degree is (7).

What exam hint can help solve this Mathematics question?

जोड़ने पर \(x^{10}\) पद कटते हैं और \(11x^7+9\) बचता है। इसकी डिग्री (7) है।