यदि \(a_n=2n^2\) है, तो \(a_3\) का मान क्या है?
If \(a_n=2n^2\), what is the value of \(a_3\)?
Explanation opens after your attempt
B. (18)
Concept
Putting (n=3), (a_3=2\(3^2\)=18). Square before multiplying.
Why this answer is correct
The correct answer is B. (18). Putting (n=3), (a_3=2\(3^2\)=18). Square before multiplying.
Exam Tip
(n=3) रखने पर (a_3=2\(3^2\)=18) है। वर्ग को गुणा से पहले निकालें।
Login to save your score, XP, coins and progress.
