Estimate

ln 1.5 = (integral from 1 to 1.5) dt/t

using the approximation (1/2)[Lf(P) + Uf(P)] with

P = {1 = (4/4) , (5/4), (6/4) , (7/4) , (8/4), (9/4), (10/4) = (5/2)} .

sorry everyone! the book is online so i had copied and pasted this question but for some reason the numbers changed and i didnt notice. im sorry for the confusion. thank you all for letting me know.

[note- the f's in Lf and Uf are like L(sub)f and U(sub)f]