यदि \(a_n=n^2+2n-1\) है, तो \(a_6\) का मान क्या होगा?
If \(a_n=n^2+2n-1\), what is the value of \(a_6\)?
Explanation opens after your attempt
B. (47)
Concept
(a_6=62+2(6)-1=47). First square, then add and subtract.
Why this answer is correct
The correct answer is B. (47). (a_6=62+2(6)-1=47). First square, then add and subtract.
Exam Tip
(a_6=62+2(6)-1=47)। पहले वर्ग करें फिर जोड़ और घटाव करें।
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