यदि \(a_n=3n^2\) है, तो \(a_2\) का मान क्या है?

If \(a_n=3n^2\), what is the value of \(a_2\)?

Author: Muft Shiksha Editorial Team Published:
Explanation opens after your attempt
Correct Answer

A. (12)

Step 1

Concept

Putting (n=2), (a_2=3\(2^2\)=12). First square (n).

Step 2

Why this answer is correct

The correct answer is A. (12). Putting (n=2), (a_2=3\(2^2\)=12). First square (n).

Step 3

Exam Tip

(n=2) रखने पर (a_2=3\(2^2\)=12) है। पहले (n) का वर्ग निकालें।

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Mathematics Answer, Explanation and Revision Hints

यदि \(a_n=3n^2\) है, तो \(a_2\) का मान क्या है? / If \(a_n=3n^2\), what is the value of \(a_2\)?

Correct Answer: A. (12). Explanation: (n=2) रखने पर (a_2=3\(2^2\)=12) है। पहले (n) का वर्ग निकालें। / Putting (n=2), (a_2=3\(2^2\)=12). First square (n).

Which concept should I revise for this Mathematics MCQ?

Putting (n=2), (a_2=3\(2^2\)=12). First square (n).

What exam hint can help solve this Mathematics question?

(n=2) रखने पर (a_2=3\(2^2\)=12) है। पहले (n) का वर्ग निकालें।