यदि \(a_1=3\) और (a_{n+1}=a_n+n(n+3)) है तो \(a_4\) क्या होगा?
If \(a_1=3\) and (a_{n+1}=a_n+n(n+3)), what is \(a_4\)?
Explanation opens after your attempt
D. (39)
Concept
The terms are (3,7,17,35), so \(a_4=35\). Exam tip: add (4,10,18), the values of (n(n+3)).
Why this answer is correct
The correct answer is D. (39). The terms are (3,7,17,35), so \(a_4=35\). Exam tip: add (4,10,18), the values of (n(n+3)).
Exam Tip
पद (3,7,17,35) नहीं बल्कि \(a_4=35\) है। (n(n+3)) के मान (4,10,18) जोड़ें।
Login to save your score, XP, coins and progress.
