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In exercises 19-22, the function represents the position in feet of an object at time t
seconds. Find the average velocity between (a) $ = 0 and t = 2, (b) t = 1 and t = 2, (c) t=
1.9 and t= 2, (d) t= 1.99 and t= 2, and (e) estimate the instantaneous velocity at t = 2.
s(t) = 3 sin(t - 2)

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