यदि \(a_1=4\) और \(a_{n+1}=a_n+3n\) है तो \(a_4\) क्या होगा?
If \(a_1=4\) and \(a_{n+1}=a_n+3n\), what is \(a_4\)?
Explanation opens after your attempt
C. (22)
Concept
The terms are (4,7,13,22), so \(a_4=22\). Exam tip: add the new value of (3n) at each step.
Why this answer is correct
The correct answer is C. (22). The terms are (4,7,13,22), so \(a_4=22\). Exam tip: add the new value of (3n) at each step.
Exam Tip
पद (4,7,13,22) हैं इसलिए \(a_4=22\) है। हर चरण में (3n) का नया मान जोड़ें।
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