अनुक्रम \(4,7,12,21,\ldots\) का सामान्य पद क्या है?

What is the general term of the sequence \(4,7,12,21,\ldots\)?

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

A. \(a_n=2^n+n+1\)

Step 1

Concept

\(2^n+n+1\) gives (4,7,12,21). In exams also check the extra (n) in power-based rules.

Step 2

Why this answer is correct

The correct answer is A. \(a_n=2^n+n+1\). \(2^n+n+1\) gives (4,7,12,21). In exams also check the extra (n) in power-based rules.

Step 3

Exam Tip

\(2^n+n+1\) से (4,7,12,21) मिलते हैं। परीक्षा में घात वाले नियमों में अतिरिक्त (n) भी जाँचें।

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Mathematics Answer, Explanation and Revision Hints

अनुक्रम \(4,7,12,21,\ldots\) का सामान्य पद क्या है? / What is the general term of the sequence \(4,7,12,21,\ldots\)?

Correct Answer: A. \(a_n=2^n+n+1\). Explanation: \(2^n+n+1\) से (4,7,12,21) मिलते हैं। परीक्षा में घात वाले नियमों में अतिरिक्त (n) भी जाँचें। / \(2^n+n+1\) gives (4,7,12,21). In exams also check the extra (n) in power-based rules.

Which concept should I revise for this Mathematics MCQ?

\(2^n+n+1\) gives (4,7,12,21). In exams also check the extra (n) in power-based rules.

What exam hint can help solve this Mathematics question?

\(2^n+n+1\) से (4,7,12,21) मिलते हैं। परीक्षा में घात वाले नियमों में अतिरिक्त (n) भी जाँचें।