यदि \(a_1=2\), \(a_2=6\) और \(a_n=a_{n-1}+2a_{n-2}+n^2\) है तो \(a_4\) क्या होगा?

If \(a_1=2\), \(a_2=6\), and \(a_n=a_{n-1}+2a_{n-2}+n^2\), what is \(a_4\)?

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

C. (47)

Step 1

Concept

\(a_3=19\) and \(a_4=47\). Exam tip: also add \(n^2\) in the two-term rule.

Step 2

Why this answer is correct

The correct answer is C. (47). \(a_3=19\) and \(a_4=47\). Exam tip: also add \(n^2\) in the two-term rule.

Step 3

Exam Tip

\(a_3=19\) और \(a_4=47\) है। दो-पद नियम में \(n^2\) भी जोड़ें।

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FAQs

Mathematics Answer, Explanation and Revision Hints

यदि \(a_1=2\), \(a_2=6\) और \(a_n=a_{n-1}+2a_{n-2}+n^2\) है तो \(a_4\) क्या होगा? / If \(a_1=2\), \(a_2=6\), and \(a_n=a_{n-1}+2a_{n-2}+n^2\), what is \(a_4\)?

Correct Answer: C. (47). Explanation: \(a_3=19\) और \(a_4=47\) है। दो-पद नियम में \(n^2\) भी जोड़ें। / \(a_3=19\) and \(a_4=47\). Exam tip: also add \(n^2\) in the two-term rule.

Which concept should I revise for this Mathematics MCQ?

\(a_3=19\) and \(a_4=47\). Exam tip: also add \(n^2\) in the two-term rule.

What exam hint can help solve this Mathematics question?

\(a_3=19\) और \(a_4=47\) है। दो-पद नियम में \(n^2\) भी जोड़ें।