यदि \(a_n=2n^2+4n-3\) है तो कौन-सा कथन सही है?
If \(a_n=2n^2+4n-3\) then which statement is correct?
Explanation opens after your attempt
A. \(a_2=13\) और \(a_3=27\)\(a_2=13\) and \(a_3=27\)
Concept
\(a_2=8+8-3=13\) and \(a_3=18+12-3=27\). In exams use a new value of (n) for each term.
Why this answer is correct
The correct answer is A. \(a_2=13\) और \(a_3=27\) / \(a_2=13\) and \(a_3=27\). \(a_2=8+8-3=13\) and \(a_3=18+12-3=27\). In exams use a new value of (n) for each term.
Exam Tip
\(a_2=8+8-3=13\) और \(a_3=18+12-3=27\) है। परीक्षा में हर पद के लिए (n) का नया मान रखें।
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