यदि \(a_1=5\) और \(a_{n+1}=a_n+8n-3\) है तो \(a_4\) क्या होगा?
If \(a_1=5\) and \(a_{n+1}=a_n+8n-3\), what is \(a_4\)?
Explanation opens after your attempt
D. (47)
Concept
The added values are (5,13,21), so \(a_4=44\). Exam tip: find (8n-3) for each step.
Why this answer is correct
The correct answer is D. (47). The added values are (5,13,21), so \(a_4=44\). Exam tip: find (8n-3) for each step.
Exam Tip
जुड़ने वाले मान (5,13,21) हैं इसलिए \(a_4=44\) है। सही विकल्पों में (44) होना चाहिए।
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