यदि (r=2), तो (\(r^2-4\)x-5+(r-1)x-4+x) की डिग्री क्या होगी?

If (r=2), what will be the degree of (\(r^2-4\)x-5+(r-1)x-4+x)?

Explanation opens after your attempt
Correct Answer

B. (4)

Step 1

Concept

For (r=2), the coefficient of \(x^5\) is (0) and the coefficient of \(x^4\) is (1). Therefore the degree is (4).

Step 2

Why this answer is correct

The correct answer is B. (4). For (r=2), the coefficient of \(x^5\) is (0) and the coefficient of \(x^4\) is (1). Therefore the degree is (4).

Step 3

Exam Tip

(r=2) पर \(x^5\) का गुणांक (0) और \(x^4\) का गुणांक (1) होता है। इसलिए डिग्री (4) है।

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Mathematics Answer, Explanation and Revision Hints

यदि (r=2), तो (\(r^2-4\)x-5+(r-1)x-4+x) की डिग्री क्या होगी? / If (r=2), what will be the degree of (\(r^2-4\)x-5+(r-1)x-4+x)?

Correct Answer: B. (4). Explanation: (r=2) पर \(x^5\) का गुणांक (0) और \(x^4\) का गुणांक (1) होता है। इसलिए डिग्री (4) है। / For (r=2), the coefficient of \(x^5\) is (0) and the coefficient of \(x^4\) is (1). Therefore the degree is (4).

Which concept should I revise for this Mathematics MCQ?

For (r=2), the coefficient of \(x^5\) is (0) and the coefficient of \(x^4\) is (1). Therefore the degree is (4).

What exam hint can help solve this Mathematics question?

(r=2) पर \(x^5\) का गुणांक (0) और \(x^4\) का गुणांक (1) होता है। इसलिए डिग्री (4) है।