Consider the definite integral $I={\displaystyle \underset{3}{\overset{4}{}}}co{t}^2(x^2+1)dx.$ Using two$-$point Gaussian quadra$-$

ture rule, the approximation of I is ture rule, the approximation of I is

$3\mathrm{.}162925$

$3\mathrm{.}716829$

$4\mathrm{.}281947$