यदि \(a_1=3\) और \(a_{n+1}=a_n+2n+1\) है तो \(a_5\) क्या होगा?
If \(a_1=3\) and \(a_{n+1}=a_n+2n+1\), what is \(a_5\)?
Explanation opens after your attempt
C. (27)
Concept
The terms are (3,6,11,18,27), so \(a_5=27\). Exam tip: use the changing value of (n) correctly at each step.
Why this answer is correct
The correct answer is C. (27). The terms are (3,6,11,18,27), so \(a_5=27\). Exam tip: use the changing value of (n) correctly at each step.
Exam Tip
पद (3,6,11,18,27) मिलते हैं इसलिए \(a_5=27\) है। बदलते (n) का मान हर चरण में सही रखें।
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