Hard Mathematics Sequences and Progressions Class 9 Level 48

अनुक्रम \(7,14,27,52,\ldots\) के लिए सही सामान्य पद कौन-सा है?

Which general term is correct for the sequence \(7,14,27,52,\ldots\)?

Explanation opens after your attempt
Correct Answer

A. \(a_n=3\cdot2^n+n\)

Step 1

Concept

\(3\cdot2^n+n\) gives (7,14,27,52). In exams check both the power and extra term in rapid growth.

Step 2

Why this answer is correct

The correct answer is A. \(a_n=3\cdot2^n+n\). \(3\cdot2^n+n\) gives (7,14,27,52). In exams check both the power and extra term in rapid growth.

Step 3

Exam Tip

\(3\cdot2^n+n\) से (7,14,27,52) मिलते हैं। परीक्षा में तेज वृद्धि में घात और अतिरिक्त पद दोनों जाँचें।

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Mathematics Answer, Explanation and Revision Hints

अनुक्रम \(7,14,27,52,\ldots\) के लिए सही सामान्य पद कौन-सा है? / Which general term is correct for the sequence \(7,14,27,52,\ldots\)?

Correct Answer: A. \(a_n=3\cdot2^n+n\). Explanation: \(3\cdot2^n+n\) से (7,14,27,52) मिलते हैं। परीक्षा में तेज वृद्धि में घात और अतिरिक्त पद दोनों जाँचें। / \(3\cdot2^n+n\) gives (7,14,27,52). In exams check both the power and extra term in rapid growth.

Which concept should I revise for this Mathematics MCQ?

\(3\cdot2^n+n\) gives (7,14,27,52). In exams check both the power and extra term in rapid growth.

What exam hint can help solve this Mathematics question?

\(3\cdot2^n+n\) से (7,14,27,52) मिलते हैं। परीक्षा में तेज वृद्धि में घात और अतिरिक्त पद दोनों जाँचें।

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