यदि \(a_1=6\) और \(a_{n+1}=a_n+2a_1+n\) है तो \(a_3\) क्या होगा?
If \(a_1=6\) and \(a_{n+1}=a_n+2a_1+n\), what is \(a_3\)?
Explanation opens after your attempt
B. (31)
Concept
\(a_2=6+12+1=19\) and \(a_3=19+12+2=33\). The correct option should be (33).
Why this answer is correct
The correct answer is B. (31). \(a_2=6+12+1=19\) and \(a_3=19+12+2=33\). The correct option should be (33).
Exam Tip
\(a_2=6+12+1=19\) और \(a_3=19+12+2=33\) नहीं बल्कि (33) है। सही विकल्प (33) होना चाहिए।
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