यदि \(a_1=50\) और (a_{n+1}=a_n-(2n+3)) है तो \(a_5\) क्या होगा?
If \(a_1=50\) and (a_{n+1}=a_n-(2n+3)), what is \(a_5\)?
Explanation opens after your attempt
A. (18)
Concept
The terms are (50,45,38,29,18), so \(a_5=18\). Exam tip: calculate (2n+3) before subtracting.
Why this answer is correct
The correct answer is A. (18). The terms are (50,45,38,29,18), so \(a_5=18\). Exam tip: calculate (2n+3) before subtracting.
Exam Tip
पद (50,45,38,29,18) हैं इसलिए \(a_5=18\) है। घटाने से पहले (2n+3) का मान सही निकालें।
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