यदि \(a_1=2\), \(a_2=6\) और \(a_n=a_{n-1}+a_{n-2}+3n\) है तो \(a_4\) क्या होगा?
If \(a_1=2\), \(a_2=6\), and \(a_n=a_{n-1}+a_{n-2}+3n\), what is \(a_4\)?
Explanation opens after your attempt
D. (35)
Concept
\(a_3=6+2+9=17\) and \(a_4=17+6+12=35\). Exam tip: use the correct current value of (n).
Why this answer is correct
The correct answer is D. (35). \(a_3=6+2+9=17\) and \(a_4=17+6+12=35\). Exam tip: use the correct current value of (n).
Exam Tip
\(a_3=6+2+9=17\) और \(a_4=17+6+12=35\) है। वर्तमान (n) का सही मान रखें।
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