यदि \(a_1=5\) और (a_{n+1}=(n+2)a_n-1) है तो \(a_4\) क्या होगा?
If \(a_1=5\) and (a_{n+1}=(n+2)a_n-1), what is \(a_4\)?
Explanation opens after your attempt
B. (274)
Concept
\(a_2=14\), \(a_3=55\), and \(a_4=274\). Exam tip: the multiplier (n+2) changes.
Why this answer is correct
The correct answer is B. (274). \(a_2=14\), \(a_3=55\), and \(a_4=274\). Exam tip: the multiplier (n+2) changes.
Exam Tip
\(a_2=14\), \(a_3=55\) और \(a_4=274\) है। गुणक (n+2) बदलता है।
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