यदि \(a_1=3\), \(a_2=6\) और \(a_n=a_{n-1}+a_{n-2}+2\) है तो \(a_4\) क्या होगा?
If \(a_1=3\), \(a_2=6\), and \(a_n=a_{n-1}+a_{n-2}+2\), what is \(a_4\)?
Explanation opens after your attempt
C. (19)
Concept
\(a_3=6+3+2=11\) and \(a_4=11+6+2=19\). Exam tip: add the extra (2) at each step.
Why this answer is correct
The correct answer is C. (19). \(a_3=6+3+2=11\) and \(a_4=11+6+2=19\). Exam tip: add the extra (2) at each step.
Exam Tip
\(a_3=6+3+2=11\) और \(a_4=11+6+2=19\) है। अतिरिक्त (2) हर चरण में जोड़ें।
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