यदि \(a_1=2\), \(a_2=5\) और \(a_n=2a_{n-1}+3a_{n-2}\) है तो \(a_5\) क्या होगा?
If \(a_1=2\), \(a_2=5\), and \(a_n=2a_{n-1}+3a_{n-2}\), what is \(a_5\)?
Explanation opens after your attempt
B. (142)
Concept
The terms are (2,5,16,47,142), so \(a_5=142\). Exam tip: apply the correct coefficient to each previous term.
Why this answer is correct
The correct answer is B. (142). The terms are (2,5,16,47,142), so \(a_5=142\). Exam tip: apply the correct coefficient to each previous term.
Exam Tip
पद (2,5,16,47,142) हैं इसलिए \(a_5=142\) है। दोनों पिछले पदों पर सही गुणांक लगाएँ।
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