यदि \(a_n=2n^2+1\) है, तो \(a_5\) क्या होगा?
If \(a_n=2n^2+1\), what is \(a_5\)?
Explanation opens after your attempt
B. (51)
Concept
(a_5=2(5)2+1=51). Calculate the power first and then add.
Why this answer is correct
The correct answer is B. (51). (a_5=2(5)2+1=51). Calculate the power first and then add.
Exam Tip
(a_5=2(5)2+1=51)। घात की गणना पहले करें फिर जोड़ें।
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