यदि \(a_1=6\) और \(a_{n+1}=a_n+a_1+n^2\) है तो \(a_4\) क्या होगा?

If \(a_1=6\) and \(a_{n+1}=a_n+a_1+n^2\), what is \(a_4\)?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

B. (37)

Step 1

Concept

The terms are (6,13,23,38), so \(a_4=38\). Exam tip: \(a_1\) stays fixed while \(n^2\) changes.

Step 2

Why this answer is correct

The correct answer is B. (37). The terms are (6,13,23,38), so \(a_4=38\). Exam tip: \(a_1\) stays fixed while \(n^2\) changes.

Step 3

Exam Tip

पद (6,13,23,38) हैं इसलिए \(a_4=38\) है। सही विकल्पों में (38) होना चाहिए।

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Mathematics Answer, Explanation and Revision Hints

यदि \(a_1=6\) और \(a_{n+1}=a_n+a_1+n^2\) है तो \(a_4\) क्या होगा? / If \(a_1=6\) and \(a_{n+1}=a_n+a_1+n^2\), what is \(a_4\)?

Correct Answer: B. (37). Explanation: पद (6,13,23,38) हैं इसलिए \(a_4=38\) है। सही विकल्पों में (38) होना चाहिए। / The terms are (6,13,23,38), so \(a_4=38\). Exam tip: \(a_1\) stays fixed while \(n^2\) changes.

Which concept should I revise for this Mathematics MCQ?

The terms are (6,13,23,38), so \(a_4=38\). Exam tip: \(a_1\) stays fixed while \(n^2\) changes.

What exam hint can help solve this Mathematics question?

पद (6,13,23,38) हैं इसलिए \(a_4=38\) है। सही विकल्पों में (38) होना चाहिए।