यदि \(a_1=3\) और \(a_{n+1}=a_n+6n-1\) है तो \(a_3\) क्या होगा?
If \(a_1=3\) and \(a_{n+1}=a_n+6n-1\), what is \(a_3\)?
Explanation opens after your attempt
C. (19)
Concept
The terms are (3,8,19), so \(a_3=19\). Exam tip: (6n-1) changes at each step.
Why this answer is correct
The correct answer is C. (19). The terms are (3,8,19), so \(a_3=19\). Exam tip: (6n-1) changes at each step.
Exam Tip
पद (3,8,19) हैं इसलिए \(a_3=19\) है। (6n-1) का मान हर चरण में बदलता है।
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