csat-suneung 2008 Q3

csat-suneung · South-Korea · csat__math-humanities 2 marks Sequences and Series Limit Evaluation Involving Sequences
What is the value of $\lim _ { n \rightarrow \infty } \frac { n } { \sqrt { 4 n ^ { 2 } + 1 } + \sqrt { n ^ { 2 } + 2 } }$? [2 points]
(1) 1
(2) $\frac { 1 } { 2 }$
(3) $\frac { 1 } { 3 }$
(4) $\frac { 1 } { 4 }$
(5) $\frac { 1 } { 5 }$
What is the value of $\lim _ { n \rightarrow \infty } \frac { n } { \sqrt { 4 n ^ { 2 } + 1 } + \sqrt { n ^ { 2 } + 2 } }$? [2 points]\\
(1) 1\\
(2) $\frac { 1 } { 2 }$\\
(3) $\frac { 1 } { 3 }$\\
(4) $\frac { 1 } { 4 }$\\
(5) $\frac { 1 } { 5 }$