17. Calculate the duration and convexity of the following price functions exactly, and using the approximation formulas with both Di ¼ 0:01, and Di ¼ 0:001. For duration, compare the results of (9.52) with (9.51). Assume 100 par.

(a) 10-year zero coupon bond with a yield of 8% semiannual

(b) 3-year, 6% semiannual coupon bond, with a yield of 7% semiannual.