यदि \(a_n=3n^2+2\) है, तो \(a_4\) क्या होगा?

If \(a_n=3n^2+2\), what is \(a_4\)?

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

C. (50)

Step 1

Concept

Putting (n=4), (3\(4^2\)+2=50). Square first and then multiply.

Step 2

Why this answer is correct

The correct answer is C. (50). Putting (n=4), (3\(4^2\)+2=50). Square first and then multiply.

Step 3

Exam Tip

(n=4) रखने पर (3\(4^2\)+2=50) है। पहले वर्ग निकालें और फिर गुणा करें।

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Mathematics Answer, Explanation and Revision Hints

यदि \(a_n=3n^2+2\) है, तो \(a_4\) क्या होगा? / If \(a_n=3n^2+2\), what is \(a_4\)?

Correct Answer: C. (50). Explanation: (n=4) रखने पर (3\(4^2\)+2=50) है। पहले वर्ग निकालें और फिर गुणा करें। / Putting (n=4), (3\(4^2\)+2=50). Square first and then multiply.

Which concept should I revise for this Mathematics MCQ?

Putting (n=4), (3\(4^2\)+2=50). Square first and then multiply.

What exam hint can help solve this Mathematics question?

(n=4) रखने पर (3\(4^2\)+2=50) है। पहले वर्ग निकालें और फिर गुणा करें।