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    				| 1. | `lim_(x rarr oo) (1+2+3+...+n)/(1^(2)+2^(2)+3^(2)+...+n^(2))` किसके बराबर है ?A. 5B. 2C. 1D. 0 | 
| Answer» Correct Answer - D `underset(nrarroo)lim(1+2+3+...+n)/(1^(2)+2^(2)+3^(2)+...+n^(2))` `=underset(nrarroo)lim((n(2+1))/(2))/((n(n+1)(2n+1))/(6))` `=underset(nrarroo)lim(n(n+1))/(2)xx(6)/(n(n+1)(2n+1))` `=underset(nrarroo)lim(3)/(2n+1)=0` | |