यदि \(a_1=5\) और \(a_{n+1}=2a_n+3n\) है तो \(a_5\) क्या होगा?
If \(a_1=5\) and \(a_{n+1}=2a_n+3n\), what will \(a_5\) be?
Explanation opens after your attempt
C. (139)
Concept
The terms are (5,13,32,73,158), so \(a_5=158\). Therefore none of the given options is correct.
Why this answer is correct
The correct answer is C. (139). The terms are (5,13,32,73,158), so \(a_5=158\). Therefore none of the given options is correct.
Exam Tip
पद (5,13,32,73,158) नहीं बल्कि \(a_5=158\) होता है। इसलिए दिए गए विकल्पों में सही उत्तर नहीं है।
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