Consider the regular subdivision of the interval [a, b] as a = x0

Extracted text: Consider the regular subdivision of the interval [a, b] as a = x0 < x1="">< x2="">< x3="">< x4="b," with="" the="" step="" size="" h="x+1" –="" xị,="" and="" define="" the="" function="" f="" on="" [a,="" b]="" such="" that="" f(a)="f(b)" =="" 1,f(x1)="1.5," f(x2)="f(x3)" =="" 2.="" suppose="" that="" the="" length="" of="" the="" interval="" [a,="" b]="" is="" 1,="" then="" the="" approximation="" of="" i="f(x)dx" using="" composite="" simpson's="" rule="" with="" n="4" is:="" 10/3="" o="" 5/2="" 5="" o="">