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

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

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

B. (23)

Step 1

Concept

The terms are (2,5,12,25), so \(a_4=25\). The correct option should include (25).

Step 2

Why this answer is correct

The correct answer is B. (23). The terms are (2,5,12,25), so \(a_4=25\). The correct option should include (25).

Step 3

Exam Tip

पद (2,5,12,25) नहीं बल्कि \(a_4=25\) है। सही विकल्प में (25) होना चाहिए।

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FAQs

Mathematics Answer, Explanation and Revision Hints

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

Correct Answer: B. (23). Explanation: पद (2,5,12,25) नहीं बल्कि \(a_4=25\) है। सही विकल्प में (25) होना चाहिए। / The terms are (2,5,12,25), so \(a_4=25\). The correct option should include (25).

Which concept should I revise for this Mathematics MCQ?

The terms are (2,5,12,25), so \(a_4=25\). The correct option should include (25).

What exam hint can help solve this Mathematics question?

पद (2,5,12,25) नहीं बल्कि \(a_4=25\) है। सही विकल्प में (25) होना चाहिए।