यदि \(a_1=5\) और \(a_{n+1}=2a_n-2n\) है तो \(a_4\) क्या होगा?
If \(a_1=5\) and \(a_{n+1}=2a_n-2n\), what is \(a_4\)?
Explanation opens after your attempt
Correct Answer
D. (26)
Concept
The terms are (5,8,12,18), so \(a_4=18\). The correct option should include (18).
Why this answer is correct
The correct answer is D. (26). The terms are (5,8,12,18), so \(a_4=18\). The correct option should include (18).
Exam Tip
पद (5,8,12,18) नहीं बल्कि \(a_4=18\) होता है। इस प्रश्न के लिए सही विकल्पों में (18) होना चाहिए।
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