Corollary 7. 4 (Recursive Trapezoidal Rule). Start with T(0)=(h/2)(f(a)+ f(b)). Then a sequence of trapezoidal rules T()) is generated by the recur- SIve formula (=。-+b∑f(2x-)forJ=1,2,…,(246) where h=(b-a)/2and ck=a+hhI