1.

`lim_(nrarroo) [(1)/(n^(2))sec^(2).(1)/(n^(2))+(2)/(n^(2))sec^(2).(4)/(n^(2))+…+(n)/(n^(2))sec^(2)1]` का मान है -A. `(1)/(2)tan1`B. `tan1`C. `(1)/(2)"cosec 1"`D. `(1)/(2)sec1`

Answer» Correct Answer - A


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