A graphing calculator is recommended. The displacement (in centimeters) of a particle s moving back and forth along a straight line is given by the equation s = 5 sin(xt) + 5 cos(t), where t is measured in seconds. (Round your answers to two decimal places.) (a) Find the average velocity during each time period. (i) [1, 2] cm/s (ii) [1, 1.1] cm/s (iii) [1, 1.01] cm/s (iv) [1, 1.001] cm/s (b) Estimate the instantaneous velocity of the particle when t = 1. cm/s