[ANSWERED] 1. Use Gaussian quadature with two and three Gauss points and Table 10–2 to evaluate the following..

1. Use Gaussian quadature with two and three Gauss points
and Table 10–2 to evaluate the following integrals:
Then use the Newton-Cotes quadrature with two and three
sampling points and Table 10–1 to evaluate the same integrals. Compare your
results.
2.
For the quadrilateral elements shown in Figure
P10–16, write a computer program to evaluate the sti¤ness matrices using
four-point Gaussian quadrature as outlined in Section 10.4. Let E = 30 10
6
psi and n = 0:25. The global coordinates (in inches) are shown in the figures.