(Data Entry: Use capital T for 8.) R/2 Find ad cost cos sin 0 de and evaluate •fo cos 0 sinº 0 de The ideal substitution in either case is um The substitution changes the integrand in both integrals to some function of u, say (u)$; give the updated version of the indefinite integral: G(u) G(u) du == du = [ du Having found the indefinite integral and returned to the original variable, the final result is: [co cos 0 sinº 0 de= For the definite integral, the substitution provides new limits of integration as follows: The lower limit x = -x/2 becomes up The upper limit xy = x/2 becomes uμ = The final value of the definite integral is: #12 Im cos 0 sinº 0 de= [Data Entry: Be sure to use capital +C as your arbitrary constant where needed.)