An object moves along a line so that its velocity at time $\displaystyle t $ is $\displaystyle v(t) = 1/2 + sin2t $ feet per second. Find the displacement and the total distance traveled by the object for $\displaystyle 0 <= t <= 3pi/2 $

i was able to find the displacement which is 3.35619 ft. need help on finding the total distance traveled.