Easy Mathematics Sequences and Progressions Class 9 Level 52

अनुक्रम \(4,10,18,28,\ldots\) के लिए सही सामान्य पद कौन-सा है?

Which general term is correct for the sequence \(4,10,18,28,\ldots\)?

Explanation opens after your attempt
Correct Answer

A. \(a_n=n^2+3n\)

Step 1

Concept

Using \(n^2+3n\) gives (4,10,18,28). In exams, test the polynomial rule with the first four terms.

Step 2

Why this answer is correct

The correct answer is A. \(a_n=n^2+3n\). Using \(n^2+3n\) gives (4,10,18,28). In exams, test the polynomial rule with the first four terms.

Step 3

Exam Tip

\(n^2+3n\) रखने पर (4,10,18,28) मिलते हैं। परीक्षा में बहुपद नियम को पहले चार पदों से जाँचें।

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Mathematics Answer, Explanation and Revision Hints

अनुक्रम \(4,10,18,28,\ldots\) के लिए सही सामान्य पद कौन-सा है? / Which general term is correct for the sequence \(4,10,18,28,\ldots\)?

Correct Answer: A. \(a_n=n^2+3n\). Explanation: \(n^2+3n\) रखने पर (4,10,18,28) मिलते हैं। परीक्षा में बहुपद नियम को पहले चार पदों से जाँचें। / Using \(n^2+3n\) gives (4,10,18,28). In exams, test the polynomial rule with the first four terms.

Which concept should I revise for this Mathematics MCQ?

Using \(n^2+3n\) gives (4,10,18,28). In exams, test the polynomial rule with the first four terms.

What exam hint can help solve this Mathematics question?

\(n^2+3n\) रखने पर (4,10,18,28) मिलते हैं। परीक्षा में बहुपद नियम को पहले चार पदों से जाँचें।

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