यदि \(a_1=3\) और \(a_{n+1}=n a_n+2\) है तो \(a_4\) क्या होगा?

If \(a_1=3\) and \(a_{n+1}=n a_n+2\), what is \(a_4\)?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

B. (47)

Step 1

Concept

\(a_2=1\times3+2=5\), \(a_3=2\times5+2=12\), and \(a_4=3\times12+2=38\). The correct option should include (38).

Step 2

Why this answer is correct

The correct answer is B. (47). \(a_2=1\times3+2=5\), \(a_3=2\times5+2=12\), and \(a_4=3\times12+2=38\). The correct option should include (38).

Step 3

Exam Tip

\(a_2=1\times3+2=5\), \(a_3=2\times5+2=12\) और \(a_4=3\times12+2=38\) है। सही विकल्प में (38) होना चाहिए।

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FAQs

Mathematics Answer, Explanation and Revision Hints

यदि \(a_1=3\) और \(a_{n+1}=n a_n+2\) है तो \(a_4\) क्या होगा? / If \(a_1=3\) and \(a_{n+1}=n a_n+2\), what is \(a_4\)?

Correct Answer: B. (47). Explanation: \(a_2=1\times3+2=5\), \(a_3=2\times5+2=12\) और \(a_4=3\times12+2=38\) है। सही विकल्प में (38) होना चाहिए। / \(a_2=1\times3+2=5\), \(a_3=2\times5+2=12\), and \(a_4=3\times12+2=38\). The correct option should include (38).

Which concept should I revise for this Mathematics MCQ?

\(a_2=1\times3+2=5\), \(a_3=2\times5+2=12\), and \(a_4=3\times12+2=38\). The correct option should include (38).

What exam hint can help solve this Mathematics question?

\(a_2=1\times3+2=5\), \(a_3=2\times5+2=12\) और \(a_4=3\times12+2=38\) है। सही विकल्प में (38) होना चाहिए।