यदि \(a_1=4\) और \(a_{n+1}=a_n+\frac{a_n}{4}+n\) है तो \(a_3\) क्या होगा?
If \(a_1=4\) and \(a_{n+1}=a_n+\frac{a_n}{4}+n\), what is \(a_3\)?
Explanation opens after your attempt
Correct Answer
B. \(\frac{19}{2}\)
Concept
\(a_2=4+1+1=6\) and \(a_3=6+\frac{6}{4}+2=\frac{19}{2}\). Exam tip: keep fractions exact until the end.
Why this answer is correct
The correct answer is B. \(\frac{19}{2}\). \(a_2=4+1+1=6\) and \(a_3=6+\frac{6}{4}+2=\frac{19}{2}\). Exam tip: keep fractions exact until the end.
Exam Tip
\(a_2=4+1+1=6\) और \(a_3=6+\frac{6}{4}+2=\frac{19}{2}\) है। भिन्नों को अंत तक ठीक रखें।
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