Given the following list of integration techniques: Integration by Parts Polynomial Long Division Trigonometric Substitution Explain which technique(s) can be used to evaluate the integrals below, or explain why they cannot be evaluated. (a) S- Svi dr dx x2 x (b) 1-2 Partial Fractions Completing the Square Change of Variable (u-substitution) dx (c) dx x25-x 1 (d) S S 7+x dx