Determine the limit, if one exists, for each sequence given (write the limit- without proving with (epsilon) definition 3.2)
(a) f(n) = 1 / (n ²)
(b) f(n) = 2 + [(- 1) ⁿ (1 / n)]
(c) f(n) = n / (3n + 2)
(d) f(n) = - n ²
(e) f(n) = (n ² + 2n + 1) / (n + 1)
(f) f(n) = 5 + 1 / n