यदि \(a_n=3n^2+n+2\) है तो \(a_{14}\) का मान क्या होगा?
If \(a_n=3n^2+n+2\), what will be the value of \(a_{14}\)?
Explanation opens after your attempt
B. (604)
Concept
\(a_{14}=3\times14^2+14+2=604\). Exam tip: square first, then multiply and add.
Why this answer is correct
The correct answer is B. (604). \(a_{14}=3\times14^2+14+2=604\). Exam tip: square first, then multiply and add.
Exam Tip
\(a_{14}=3\times14^2+14+2=604\) है। वर्ग निकालने के बाद गुणा और जोड़ करें।
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