यदि \(a_1=5\) और \(a_{n+1}=a_n+2a_1+n^2\) है तो \(a_3\) क्या होगा?
If \(a_1=5\) and \(a_{n+1}=a_n+2a_1+n^2\), what is \(a_3\)?
Explanation opens after your attempt
B. (29)
Concept
\(a_2=5+10+1=16\) and \(a_3=16+10+4=30\). The correct option should include (30).
Why this answer is correct
The correct answer is B. (29). \(a_2=5+10+1=16\) and \(a_3=16+10+4=30\). The correct option should include (30).
Exam Tip
\(a_2=5+10+1=16\) और \(a_3=16+10+4=30\) है। सही विकल्प में (30) होना चाहिए।
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