Evaluate the integral. 2 S 2/3 2 S 11t sect dt 11t sect dt = 2/3 (Type an exact answer, using as needed.) K Use an appropriate substitution and then a trigonometric substitution to evaluate the integral. SV XON 4-x JVX V XOXE Find the partial fraction decomposition for the rational expression. 11x + 50 (x+6)(x+4) 11x + 50 (x+6)(x+4)