यदि \(a_n=3n^2-n\) है, तो \(a_5\) का मान क्या होगा?

If \(a_n=3n^2-n\), what is the value of \(a_5\)?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

A. (70)

Step 1

Concept

\(a_5=3\times25-5=70\). In exams, subtract (n) from the square-based part.

Step 2

Why this answer is correct

The correct answer is A. (70). \(a_5=3\times25-5=70\). In exams, subtract (n) from the square-based part.

Step 3

Exam Tip

\(a_5=3\times25-5=70\) है। परीक्षा में वर्ग वाले भाग से (n) घटाएँ।

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Mathematics Answer, Explanation and Revision Hints

यदि \(a_n=3n^2-n\) है, तो \(a_5\) का मान क्या होगा? / If \(a_n=3n^2-n\), what is the value of \(a_5\)?

Correct Answer: A. (70). Explanation: \(a_5=3\times25-5=70\) है। परीक्षा में वर्ग वाले भाग से (n) घटाएँ। / \(a_5=3\times25-5=70\). In exams, subtract (n) from the square-based part.

Which concept should I revise for this Mathematics MCQ?

\(a_5=3\times25-5=70\). In exams, subtract (n) from the square-based part.

What exam hint can help solve this Mathematics question?

\(a_5=3\times25-5=70\) है। परीक्षा में वर्ग वाले भाग से (n) घटाएँ।