यदि (d=-1), तो ((d+1)x-5+(2d+3)x-2+7) की डिग्री क्या होगी?

If (d=-1), what will be the degree of ((d+1)x-5+(2d+3)x-2+7)?

Explanation opens after your attempt
Correct Answer

B. (2)

Step 1

Concept

Putting (d=-1) makes the coefficient of \(x^5\) equal to (0) and the coefficient of \(x^2\) equal to (1). So the highest power is (2).

Step 2

Why this answer is correct

The correct answer is B. (2). Putting (d=-1) makes the coefficient of \(x^5\) equal to (0) and the coefficient of \(x^2\) equal to (1). So the highest power is (2).

Step 3

Exam Tip

(d=-1) रखने पर \(x^5\) का गुणांक (0) और \(x^2\) का गुणांक (1) होता है। इसलिए सबसे बड़ी घात (2) है।

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Mathematics Answer, Explanation and Revision Hints

यदि (d=-1), तो ((d+1)x-5+(2d+3)x-2+7) की डिग्री क्या होगी? / If (d=-1), what will be the degree of ((d+1)x-5+(2d+3)x-2+7)?

Correct Answer: B. (2). Explanation: (d=-1) रखने पर \(x^5\) का गुणांक (0) और \(x^2\) का गुणांक (1) होता है। इसलिए सबसे बड़ी घात (2) है। / Putting (d=-1) makes the coefficient of \(x^5\) equal to (0) and the coefficient of \(x^2\) equal to (1). So the highest power is (2).

Which concept should I revise for this Mathematics MCQ?

Putting (d=-1) makes the coefficient of \(x^5\) equal to (0) and the coefficient of \(x^2\) equal to (1). So the highest power is (2).

What exam hint can help solve this Mathematics question?

(d=-1) रखने पर \(x^5\) का गुणांक (0) और \(x^2\) का गुणांक (1) होता है। इसलिए सबसे बड़ी घात (2) है।