यदि \(a_1=1\) और \(a_{n+1}=2a_n+n^2\) है तो \(a_4\) क्या होगा?
If \(a_1=1\) and \(a_{n+1}=2a_n+n^2\), what is \(a_4\)?
Explanation opens after your attempt
C. (29)
Concept
The terms are (1,3,10,29), so \(a_4=29\). Exam tip: double first and then add \(n^2\).
Why this answer is correct
The correct answer is C. (29). The terms are (1,3,10,29), so \(a_4=29\). Exam tip: double first and then add \(n^2\).
Exam Tip
पद (1,3,10,29) हैं इसलिए \(a_4=29\) है। पहले दोगुना करें फिर \(n^2\) जोड़ें।
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