यदि \(a_1=5\) और (a_{n+1}=a_n+(-1)^{n+1}n) है तो \(a_5\) क्या होगा?
If \(a_1=5\) and (a_{n+1}=a_n+(-1)^{n+1}n), what is \(a_5\)?
Explanation opens after your attempt
Correct Answer
C. (7)
Concept
The terms are (5,6,4,7,3), so \(a_5=3\). The correct option should include (3).
Why this answer is correct
The correct answer is C. (7). The terms are (5,6,4,7,3), so \(a_5=3\). The correct option should include (3).
Exam Tip
पद (5,6,4,7,3) नहीं बल्कि \(a_5=3\) है। सही विकल्प में (3) होना चाहिए।
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