किस मान पर ((d+2)x-5+(d-4)x-3+9) की डिग्री (3) होगी?

For which value will the degree of ((d+2)x-5+(d-4)x-3+9) be (3)?

Author: Muft Shiksha Editorial Team Published:
Explanation opens after your attempt
Correct Answer

B. (d=-2)

Step 1

Concept

For degree (3), the \(x^5\) term must vanish and the \(x^3\) term must remain. This is true at (d=-2).

Step 2

Why this answer is correct

The correct answer is B. (d=-2). For degree (3), the \(x^5\) term must vanish and the \(x^3\) term must remain. This is true at (d=-2).

Step 3

Exam Tip

डिग्री (3) के लिए \(x^5\) पद हटना चाहिए और \(x^3\) पद बचना चाहिए। (d=-2) पर यह सही होता है।

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Mathematics Answer, Explanation and Revision Hints

किस मान पर ((d+2)x-5+(d-4)x-3+9) की डिग्री (3) होगी? / For which value will the degree of ((d+2)x-5+(d-4)x-3+9) be (3)?

Correct Answer: B. (d=-2). Explanation: डिग्री (3) के लिए \(x^5\) पद हटना चाहिए और \(x^3\) पद बचना चाहिए। (d=-2) पर यह सही होता है। / For degree (3), the \(x^5\) term must vanish and the \(x^3\) term must remain. This is true at (d=-2).

Which concept should I revise for this Mathematics MCQ?

For degree (3), the \(x^5\) term must vanish and the \(x^3\) term must remain. This is true at (d=-2).

What exam hint can help solve this Mathematics question?

डिग्री (3) के लिए \(x^5\) पद हटना चाहिए और \(x^3\) पद बचना चाहिए। (d=-2) पर यह सही होता है।