अनुक्रम \(2,8,26,80,\ldots\) का सामान्य पद क्या है?

What is the general term of the sequence \(2,8,26,80,\ldots\)?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

A. \(a_n=3^n-1\)

Step 1

Concept

\(3^n-1\) gives (2,8,26,80). In exams check a power rule in rapidly growing terms.

Step 2

Why this answer is correct

The correct answer is A. \(a_n=3^n-1\). \(3^n-1\) gives (2,8,26,80). In exams check a power rule in rapidly growing terms.

Step 3

Exam Tip

\(3^n-1\) से (2,8,26,80) मिलते हैं। परीक्षा में तेज बढ़ते पदों में घात वाला नियम जाँचें।

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Mathematics Answer, Explanation and Revision Hints

अनुक्रम \(2,8,26,80,\ldots\) का सामान्य पद क्या है? / What is the general term of the sequence \(2,8,26,80,\ldots\)?

Correct Answer: A. \(a_n=3^n-1\). Explanation: \(3^n-1\) से (2,8,26,80) मिलते हैं। परीक्षा में तेज बढ़ते पदों में घात वाला नियम जाँचें। / \(3^n-1\) gives (2,8,26,80). In exams check a power rule in rapidly growing terms.

Which concept should I revise for this Mathematics MCQ?

\(3^n-1\) gives (2,8,26,80). In exams check a power rule in rapidly growing terms.

What exam hint can help solve this Mathematics question?

\(3^n-1\) से (2,8,26,80) मिलते हैं। परीक्षा में तेज बढ़ते पदों में घात वाला नियम जाँचें।