यदि \(a_1=1\), \(a_2=4\) और \(a_n=a_{n-1}+a_{n-2}+n\) है तो \(a_5\) क्या होगा?
If \(a_1=1\), \(a_2=4\), and \(a_n=a_{n-1}+a_{n-2}+n\), what is \(a_5\)?
Explanation opens after your attempt
C. (29)
Concept
The terms are (1,4,8,16,29), so \(a_5=29\). Exam tip: add the current (n) with the previous two terms.
Why this answer is correct
The correct answer is C. (29). The terms are (1,4,8,16,29), so \(a_5=29\). Exam tip: add the current (n) with the previous two terms.
Exam Tip
पद (1,4,8,16,29) हैं इसलिए \(a_5=29\) है। पिछले दो पदों के साथ वर्तमान (n) जोड़ें।
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