Thanks so much.

Q1, use two rectangles to approximate the area contained between the curve and the x-axis.

use the method indicated and give your answer correct to two decimal places.

a, y=1/2xsquared between x=2 and x=3

using the right end point method

b, y=cos x between x=0 and x=pie/2

using the left endpoint method

c, y=1/2xcubed between x=1 and x=3

using the right endpoint method