integral and determine the porcentage thre- \table[[No. of Gauss points,Lecrive,,Weym],[1,0,,2],[2,
-0.5773502692
,(21/N3),1],[3,
-0.7745966692
,(2vits),6.5555553455]] Hist:
\int_a^b (lnx)/(x)dx=(1)/(2)[(lnb)^(2)-(lna)^(2)]
(4) (cos.
cos
)