I. Calculer, avec dix divisions, rintëgrale

R. On a ici

f(x) = -J— ; Ax=0,i; yo = l; y, = 0,99010; y,=0,a6lîî4;

y3 = 0,91743; y4=0,86207; y5=0,80000; ye=0,73529; y^=0fi7iii\ y8 = 0,60976; y» =0,55249; y ^o =0,50000.

[Vo -^ yio = i,îJ] -^ [^ (yi -♦- ys -♦- ys -*- y? -^ ys) = 15,72464]

-♦- [2 (yj -*- y* -♦- y 6 -*- y s) = 6,33732] = 23,56196.

log ^ = - 2,5228787 ; log 23,56196 = i ,3722120.