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 \(a_3\)?
Explanation opens after your attempt
C. (13)
Concept
\(a_2=3+4=7\) and \(a_3=7+6=13\). Exam tip: use the new value of (n) at each step.
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.
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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