Draw the graph of f(x) = sin(x^2/2) in the viewing rectangle [0,1] by [0,0.5] and let I = the integral of f(x) from 0 to 1.

a) use the graph to decide whether L2, R2, M2, T2 underestimate or overestimate I.

what is the viewing rectangle?

for a) do i compute the left point with n = 2? and then compare it to I, which i do on the calculator?