यदि \(a_1=8\) और \(a_{n+1}=3a_n+n\) है तो \(a_3\) क्या होगा?
If \(a_1=8\) and \(a_{n+1}=3a_n+n\), what is \(a_3\)?
Explanation opens after your attempt
C. (79)
Concept
\(a_2=3\times8+1=25\) and \(a_3=3\times25+2=77\). Therefore the correct value is (77).
Why this answer is correct
The correct answer is C. (79). \(a_2=3\times8+1=25\) and \(a_3=3\times25+2=77\). Therefore the correct value is (77).
Exam Tip
\(a_2=3\times8+1=25\) और \(a_3=3\times25+2=77\) है। इसलिए सही मान (77) है।
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