1) The velocity of an object is given by the following function defined on a specified interval. Approximate the displacement of the object on this interval by subdividing the interval into the indicated number of subintervals. Use the left endpoint of each subinterval to compute the height of the rectangles.

V=3t ?(m/s), for 0?; n=2

2)Find the area of the region bounded by the graph of ?f(x)=sinx and the?x-axis on the interval [??/3,3?/4].

3)

The figure to the right shows the area of regions bounded by the graph of f and the x-axis. Evaluate the following integral. a y = f(x) f ( x ) dx 21 0 10 O 15The accompanying figure shows the areas of regions bounded by the graph of f and the x-axis. Evaluate the following integral. C Ay If( x ) / dx y = f(x) 18 14 O X 14 b C