a. Find the duration of a 5.6% coupon bond making annual coupon payments if it has three years until maturity and has a yield to maturity of 5.6%. Note: The face value of the bond is $1,000. (Do not round intermediate calculations. Round your answer to 3 decimal places.) 5.6% YTM years b. What is the duration if the yield to maturity is 7.6% ? Note: The face value of the bond is $1,000. (Do not round intermediate calculations. Round your answer to 3 decimal places.) 7.6% YTM years