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 \(a_5\)?
Explanation opens after your attempt
A. (70)
Concept
\(a_5=3\times25-5=70\). In exams, subtract (n) from the square-based part.
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.
Exam Tip
\(a_5=3\times25-5=70\) है। परीक्षा में वर्ग वाले भाग से (n) घटाएँ।
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