यदि \(a_1=2\), \(a_2=4\) और \(a_n=a_{n-1}+a_{n-2}+n\) है तो \(a_4\) क्या होगा?
If \(a_1=2\), \(a_2=4\), and \(a_n=a_{n-1}+a_{n-2}+n\), what is \(a_4\)?
Explanation opens after your attempt
C. (14)
Concept
\(a_3=4+2+3=9\) and \(a_4=9+4+4=17\). The correct option should include (17).
Why this answer is correct
The correct answer is C. (14). \(a_3=4+2+3=9\) and \(a_4=9+4+4=17\). The correct option should include (17).
Exam Tip
\(a_3=4+2+3=9\) और \(a_4=9+4+4=17\) है। सही विकल्प में (17) होना चाहिए।
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