यदि \(a_1=2\), \(a_2=3\) और \(a_n=a_{n-1}+a_{n-2}+2n\) है तो \(a_3\) क्या होगा?
If \(a_1=2\), \(a_2=3\), and \(a_n=a_{n-1}+a_{n-2}+2n\), what is \(a_3\)?
Explanation opens after your attempt
B. (11)
Concept
\(a_3=3+2+2\times3=11\). Exam tip: add current (2n) along with the previous two terms.
Why this answer is correct
The correct answer is B. (11). \(a_3=3+2+2\times3=11\). Exam tip: add current (2n) along with the previous two terms.
Exam Tip
\(a_3=3+2+2\times3=11\) है। पिछले दो पदों के साथ वर्तमान (2n) जोड़ें।
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