Hard Mathematics Sequences and Progressions Class 9 Level 48

अनुक्रम \(1,15,65,259,\ldots\) के लिए सही सामान्य पद कौन-सा है?

Which general term is correct for the sequence \(1,15,65,259,\ldots\)?

Explanation opens after your attempt
Correct Answer

A. \(a_n=4^n+2n-5\)

Step 1

Concept

\(4^n+2n-5\) gives (1,15,65,259). In exams also check constant subtraction in power-based rules.

Step 2

Why this answer is correct

The correct answer is A. \(a_n=4^n+2n-5\). \(4^n+2n-5\) gives (1,15,65,259). In exams also check constant subtraction in power-based rules.

Step 3

Exam Tip

\(4^n+2n-5\) से (1,15,65,259) मिलते हैं। परीक्षा में घात वाले नियमों में स्थिर घटाव भी जाँचें।

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Mathematics Answer, Explanation and Revision Hints

अनुक्रम \(1,15,65,259,\ldots\) के लिए सही सामान्य पद कौन-सा है? / Which general term is correct for the sequence \(1,15,65,259,\ldots\)?

Correct Answer: A. \(a_n=4^n+2n-5\). Explanation: \(4^n+2n-5\) से (1,15,65,259) मिलते हैं। परीक्षा में घात वाले नियमों में स्थिर घटाव भी जाँचें। / \(4^n+2n-5\) gives (1,15,65,259). In exams also check constant subtraction in power-based rules.

Which concept should I revise for this Mathematics MCQ?

\(4^n+2n-5\) gives (1,15,65,259). In exams also check constant subtraction in power-based rules.

What exam hint can help solve this Mathematics question?

\(4^n+2n-5\) से (1,15,65,259) मिलते हैं। परीक्षा में घात वाले नियमों में स्थिर घटाव भी जाँचें।

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