यदि (A(x)=x-8+7) और (B(x)=-x-8+9x-5), तो (A(x)+B(x)) की डिग्री क्या है?

If (A(x)=x-8+7) and (B(x)=-x-8+9x-5), what is the degree of (A(x)+B(x))?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

B. (5)

Step 1

Concept

On adding, the \(x^8\) terms cancel and \(9x^5+7\) remains. Its degree is (5).

Step 2

Why this answer is correct

The correct answer is B. (5). On adding, the \(x^8\) terms cancel and \(9x^5+7\) remains. Its degree is (5).

Step 3

Exam Tip

जोड़ने पर \(x^8\) पद कटते हैं और \(9x^5+7\) बचता है। इसकी डिग्री (5) है।

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Mathematics Answer, Explanation and Revision Hints

यदि (A(x)=x-8+7) और (B(x)=-x-8+9x-5), तो (A(x)+B(x)) की डिग्री क्या है? / If (A(x)=x-8+7) and (B(x)=-x-8+9x-5), what is the degree of (A(x)+B(x))?

Correct Answer: B. (5). Explanation: जोड़ने पर \(x^8\) पद कटते हैं और \(9x^5+7\) बचता है। इसकी डिग्री (5) है। / On adding, the \(x^8\) terms cancel and \(9x^5+7\) remains. Its degree is (5).

Which concept should I revise for this Mathematics MCQ?

On adding, the \(x^8\) terms cancel and \(9x^5+7\) remains. Its degree is (5).

What exam hint can help solve this Mathematics question?

जोड़ने पर \(x^8\) पद कटते हैं और \(9x^5+7\) बचता है। इसकी डिग्री (5) है।