यदि \(a_n=4n^2+2n-3\) है तो \(a_{11}\) का मान क्या होगा?
If \(a_n=4n^2+2n-3\), what will be the value of \(a_{11}\)?
Explanation opens after your attempt
B. (503)
Concept
\(a_{11}=4\times11^2+2\times11-3=503\). Exam tip: square first and then complete the remaining operations.
Why this answer is correct
The correct answer is B. (503). \(a_{11}=4\times11^2+2\times11-3=503\). Exam tip: square first and then complete the remaining operations.
Exam Tip
\(a_{11}=4\times11^2+2\times11-3=503\) है। पहले वर्ग निकालकर फिर बाकी क्रियाएँ करें।
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