यदि \(a_n=3n^2-2n\) है तो कौन सा पद (408) के बराबर है?
If \(a_n=3n^2-2n\), which term is equal to (408)?
Explanation opens after your attempt
C. (12)वाँ(12)th
Concept
\(3\times12^2-2\times12=408\). Exam tip: test the given positions quickly in the formula.
Why this answer is correct
The correct answer is C. (12)वाँ / (12)th. \(3\times12^2-2\times12=408\). Exam tip: test the given positions quickly in the formula.
Exam Tip
\(3\times12^2-2\times12=408\) है। विकल्पों को जल्दी जाँचने के लिए दिए गए क्रमांक रखें।
Login to save your score, XP, coins and progress.
