यदि \(a_1=2\) और \(a_{n+1}=3a_n+n^2\) है तो \(a_3\) क्या होगा?

If \(a_1=2\) and \(a_{n+1}=3a_n+n^2\), what is \(a_3\)?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

C. (25)

Step 1

Concept

\(a_2=3\times2+1=7\) and \(a_3=3\times7+4=25\). Exam tip: do both multiplication and square addition.

Step 2

Why this answer is correct

The correct answer is C. (25). \(a_2=3\times2+1=7\) and \(a_3=3\times7+4=25\). Exam tip: do both multiplication and square addition.

Step 3

Exam Tip

\(a_2=3\times2+1=7\) और \(a_3=3\times7+4=25\) है। गुणा और वर्ग जोड़ दोनों करें।

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FAQs

Mathematics Answer, Explanation and Revision Hints

यदि \(a_1=2\) और \(a_{n+1}=3a_n+n^2\) है तो \(a_3\) क्या होगा? / If \(a_1=2\) and \(a_{n+1}=3a_n+n^2\), what is \(a_3\)?

Correct Answer: C. (25). Explanation: \(a_2=3\times2+1=7\) और \(a_3=3\times7+4=25\) है। गुणा और वर्ग जोड़ दोनों करें। / \(a_2=3\times2+1=7\) and \(a_3=3\times7+4=25\). Exam tip: do both multiplication and square addition.

Which concept should I revise for this Mathematics MCQ?

\(a_2=3\times2+1=7\) and \(a_3=3\times7+4=25\). Exam tip: do both multiplication and square addition.

What exam hint can help solve this Mathematics question?

\(a_2=3\times2+1=7\) और \(a_3=3\times7+4=25\) है। गुणा और वर्ग जोड़ दोनों करें।