यदि \(a_1=20\) और \(a_{n+1}=\frac{a_n}{2}+3n\) है तो \(a_2\) क्या होगा?
If \(a_1=20\) and \(a_{n+1}=\frac{a_n}{2}+3n\), what is \(a_2\)?
Explanation opens after your attempt
B. (13)
Concept
\(a_2=\frac{20}{2}+3=13\). Exam tip: halve first and then add (3n).
Why this answer is correct
The correct answer is B. (13). \(a_2=\frac{20}{2}+3=13\). Exam tip: halve first and then add (3n).
Exam Tip
\(a_2=\frac{20}{2}+3=13\) है। पहले आधा करें फिर (3n) जोड़ें।
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