यदि \(a_1=3\), \(a_2=8\) और \(a_n=a_{n-1}+a_{n-2}\) है तो \(a_4\) क्या होगा?
If \(a_1=3\), \(a_2=8\), and \(a_n=a_{n-1}+a_{n-2}\), what is \(a_4\)?
Explanation opens after your attempt
C. (19)
Concept
The terms are (3,8,11,19), so \(a_4=19\). Exam tip: add the correct pair of previous terms.
Why this answer is correct
The correct answer is C. (19). The terms are (3,8,11,19), so \(a_4=19\). Exam tip: add the correct pair of previous terms.
Exam Tip
पद (3,8,11,19) हैं इसलिए \(a_4=19\) है। पिछले दो पदों की सही जोड़ी जोड़ें।
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