(7 pts each) For each part of this problem, state which integration technique you would use to evaluate the integral, but do not evaluate the integral. • If your answer is u substitution, also list u and du, and rewrite the equation in terms of u; • If your answer is integration by parts, also list u, dv, du and v, and rewrite the integral; • If your answer is partial fractions, set up the partial fraction decomposition, but you do not need to solve for the constants in the numerators; • If your answer is trigonometric substitution, write which substitution you would use and rewrite the equation in term of the new variable. a. f dx (x²-9)z 3t-8 b. t t²(t²-4) c. 5xe³x dx