यदि \(a_1=2\) और \(a_{n+1}=a_n+n^2+2n\) है तो \(a_5\) क्या होगा?

If \(a_1=2\) and \(a_{n+1}=a_n+n^2+2n\), what is \(a_5\)?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

D. (50)

Step 1

Concept

The added values are (3,8,15,24), and after adding them \(a_5=50\). Exam tip: write values of \(n^2+2n\) separately.

Step 2

Why this answer is correct

The correct answer is D. (50). The added values are (3,8,15,24), and after adding them \(a_5=50\). Exam tip: write values of \(n^2+2n\) separately.

Step 3

Exam Tip

जुड़ने वाले मान (3,8,15,24) हैं और योग के बाद \(a_5=50\) मिलता है। पहले \(n^2+2n\) के मान अलग लिखें।

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FAQs

Mathematics Answer, Explanation and Revision Hints

यदि \(a_1=2\) और \(a_{n+1}=a_n+n^2+2n\) है तो \(a_5\) क्या होगा? / If \(a_1=2\) and \(a_{n+1}=a_n+n^2+2n\), what is \(a_5\)?

Correct Answer: D. (50). Explanation: जुड़ने वाले मान (3,8,15,24) हैं और योग के बाद \(a_5=50\) मिलता है। पहले \(n^2+2n\) के मान अलग लिखें। / The added values are (3,8,15,24), and after adding them \(a_5=50\). Exam tip: write values of \(n^2+2n\) separately.

Which concept should I revise for this Mathematics MCQ?

The added values are (3,8,15,24), and after adding them \(a_5=50\). Exam tip: write values of \(n^2+2n\) separately.

What exam hint can help solve this Mathematics question?

जुड़ने वाले मान (3,8,15,24) हैं और योग के बाद \(a_5=50\) मिलता है। पहले \(n^2+2n\) के मान अलग लिखें।