किसी अनुक्रम में \(a_1=4\) और \(a_n=2a_{n-1}+n+2\) है। \(a_5\) का मान क्या होगा?
In a sequence, \(a_1=4\) and \(a_n=2a_{n-1}+n+2\). What is the value of \(a_5\)?
Explanation opens after your attempt
C. एक सौ पैंतीस(135)
Concept
\(a_2=12\), \(a_3=29\), \(a_4=64\), and \(a_5=135\). In exams, add the current value of (n) correctly.
Why this answer is correct
The correct answer is C. एक सौ पैंतीस / (135). \(a_2=12\), \(a_3=29\), \(a_4=64\), and \(a_5=135\). In exams, add the current value of (n) correctly.
Exam Tip
\(a_2=12\), \(a_3=29\), \(a_4=64\) और \(a_5=135\) मिलता है। परीक्षा में (n) का वर्तमान मान सही जोड़ें।
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