यदि \(a_1=2\) और \(a_{n+1}=a_n^2+a_n+1\) है तो \(a_3\) क्या होगा?
If \(a_1=2\) and \(a_{n+1}=a_n^2+a_n+1\), what is \(a_3\)?
Explanation opens after your attempt
C. (57)
Concept
\(a_2=4+2+1=7\) and \(a_3=49+7+1=57\). Exam tip: square first, then add the previous term and (1).
Why this answer is correct
The correct answer is C. (57). \(a_2=4+2+1=7\) and \(a_3=49+7+1=57\). Exam tip: square first, then add the previous term and (1).
Exam Tip
\(a_2=4+2+1=7\) और \(a_3=49+7+1=57\) है। पहले वर्ग करें फिर पिछले पद और (1) जोड़ें।
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