यदि \(a_1=10\) और \(a_{n+1}=\frac{a_n}{2}+n\) है तो \(a_4\) क्या होगा?
If \(a_1=10\) and \(a_{n+1}=\frac{a_n}{2}+n\), what is \(a_4\)?
Explanation opens after your attempt
D. (8.5)
Concept
The terms are (10,6,5,5.5), so \(a_4=5.5\). Exam tip: halve first and then add (n).
Why this answer is correct
The correct answer is D. (8.5). The terms are (10,6,5,5.5), so \(a_4=5.5\). Exam tip: halve first and then add (n).
Exam Tip
पद (10,6,5,5.5) नहीं बल्कि \(a_4=5.5\) है। आधा करने के बाद (n) जोड़ें।
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