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

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

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

C. (13)

Step 1

Concept

\(a_2=3+4=7\) and \(a_3=7+6=13\). Exam tip: use the new value of (n) at each step.

Step 2

Why this answer is correct

The correct answer is C. (13). \(a_2=3+4=7\) and \(a_3=7+6=13\). Exam tip: use the new value of (n) at each step.

Step 3

Exam Tip

\(a_2=3+4=7\) और \(a_3=7+6=13\) है। प्रत्येक चरण में (n) का नया मान लगाएँ।

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Mathematics Answer, Explanation and Revision Hints

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

Correct Answer: C. (13). Explanation: \(a_2=3+4=7\) और \(a_3=7+6=13\) है। प्रत्येक चरण में (n) का नया मान लगाएँ। / \(a_2=3+4=7\) and \(a_3=7+6=13\). Exam tip: use the new value of (n) at each step.

Which concept should I revise for this Mathematics MCQ?

\(a_2=3+4=7\) and \(a_3=7+6=13\). Exam tip: use the new value of (n) at each step.

What exam hint can help solve this Mathematics question?

\(a_2=3+4=7\) और \(a_3=7+6=13\) है। प्रत्येक चरण में (n) का नया मान लगाएँ।