Question:

(a) Estimate the area under the graph of f(x) = 10 cos( x) from x = 0 to x = _ using four approximation rectangles and right 2 endpoints. (Round your answers to four decimal places.) R 4 = Sketch the graph and the rectangles. 10 10 f(x) = 10 cos(X) f(x) = 10 cos(X) 9 8 8 5 W N N X 00 1 N O 10 10 f(x) = 10 cos(X) f(x) = 10 cos(X) Do J W N N X 3 x 00 1 2 O 8 Is your estimate an underestimate or an overestimate? underestimate overestimate (b) Repeat part (a) using left endpoints. LA = Sketch the graph and the rectangles. 10 10 f(x) = 10 cos(X) f(x) = 10 cos(X) 8 8 J 6 N X NIN NIX C 10 10 f(x) = 10 cos(X) f(x) = 10 cos(x) J 2 N X X NIX 3x NIX O Is your estimate an underestimate or an overestimate? ouncestimone . overstimant