Exercise. Find the limits of the following sequences by inspection. If a limit is infinite, use either "too" or "-co". If the limit otherwise does not exist, write "DNE". To earn credit, you must type these exactly as they appear! Exercise. Consider{an}n=1 where an = n(2n+1) (n2-5) (n+1) (2n4+3) . Then: lim an = ? Exercise. Consider {bn}n=1 where bn = cos ( (2n+1) 2 . Then: @ Reveal Hint lim on = ? Exercise. Consider {Cn}n=1 where on = 125n 124 4n+3 . Then: 1-2n4 lim Cn = ? n-+00Exercise. Consider {dn }n=1 where dn _ 5n'tn/46 , 2n3-3n4 . Then: lim dn = ? n-+00