arctan(t2) 3. (2 points) Compute dt using power series. (The antiderivative cannot be written in terms of t "well-known" functions) 4. (3 points) Let f(x) = 1x (a) Compute f() (0), . .., f(3)(0) and find a general expression for f(") (0). (b) Use your general expression to compute the MacLaurin series for f(x). (c) How does the MacLaurin series for f(x) compare to the geometric series presentation for f()