यदि \(a_1=3\) और (a_{n+1}=a_n+n(n+3)) है तो \(a_3\) क्या होगा?
If \(a_1=3\) and (a_{n+1}=a_n+n(n+3)), what is \(a_3\)?
Explanation opens after your attempt
B. (17)
Concept
The terms are (3,7,17), so \(a_3=17\). Exam tip: calculate the product before adding.
Why this answer is correct
The correct answer is B. (17). The terms are (3,7,17), so \(a_3=17\). Exam tip: calculate the product before adding.
Exam Tip
पद (3,7,17) हैं इसलिए \(a_3=17\) है। गुणनफल निकालकर जोड़ें।
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