Easy Mathematics Sequences and Progressions Class 9 Level 61

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

If \(a_n=3n^2+2\), what is the third term?

Explanation opens after your attempt
Correct Answer

D. (29)

Step 1

Concept

\(a_3=3\times3^2+2=29\). In exams, square first, then multiply and add.

Step 2

Why this answer is correct

The correct answer is D. (29). \(a_3=3\times3^2+2=29\). In exams, square first, then multiply and add.

Step 3

Exam Tip

\(a_3=3\times3^2+2=29\) है। परीक्षा में पहले वर्ग निकालें फिर गुणा और जोड़ करें।

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Mathematics Answer, Explanation and Revision Hints

यदि \(a_n=3n^2+2\) है, तो तीसरा पद क्या होगा? / If \(a_n=3n^2+2\), what is the third term?

Correct Answer: D. (29). Explanation: \(a_3=3\times3^2+2=29\) है। परीक्षा में पहले वर्ग निकालें फिर गुणा और जोड़ करें। / \(a_3=3\times3^2+2=29\). In exams, square first, then multiply and add.

Which concept should I revise for this Mathematics MCQ?

\(a_3=3\times3^2+2=29\). In exams, square first, then multiply and add.

What exam hint can help solve this Mathematics question?

\(a_3=3\times3^2+2=29\) है। परीक्षा में पहले वर्ग निकालें फिर गुणा और जोड़ करें।

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