यदि \(a_1=3\) और \(a_{n+1}=a_n+2n\) है तो \(a_5\) क्या होगा?

If \(a_1=3\) and \(a_{n+1}=a_n+2n\), what is \(a_5\)?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

D. (23)

Step 1

Concept

The terms are (3,5,9,15,23), so \(a_5=23\). Exam tip: find (2n) first and then add.

Step 2

Why this answer is correct

The correct answer is D. (23). The terms are (3,5,9,15,23), so \(a_5=23\). Exam tip: find (2n) first and then add.

Step 3

Exam Tip

पद (3,5,9,15,23) हैं इसलिए \(a_5=23\) है। पहले (2n) निकालें फिर जोड़ें।

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FAQs

Mathematics Answer, Explanation and Revision Hints

यदि \(a_1=3\) और \(a_{n+1}=a_n+2n\) है तो \(a_5\) क्या होगा? / If \(a_1=3\) and \(a_{n+1}=a_n+2n\), what is \(a_5\)?

Correct Answer: D. (23). Explanation: पद (3,5,9,15,23) हैं इसलिए \(a_5=23\) है। पहले (2n) निकालें फिर जोड़ें। / The terms are (3,5,9,15,23), so \(a_5=23\). Exam tip: find (2n) first and then add.

Which concept should I revise for this Mathematics MCQ?

The terms are (3,5,9,15,23), so \(a_5=23\). Exam tip: find (2n) first and then add.

What exam hint can help solve this Mathematics question?

पद (3,5,9,15,23) हैं इसलिए \(a_5=23\) है। पहले (2n) निकालें फिर जोड़ें।