1. Evaluate the following using substitution. Do parts (a) through (e) in two ways: i. by writing the integrand in the form f(G(x))g(x) (or y oir t or whatever the variable is) for appropriate functions f, G, and g, with G, = g, and then finding F = Jf; and ii. using differential notation. Do the remaining parts in the way you feel most confident sin(w) Vcos(w) dw sin(vs) b) sin(52) dz m) rlnr nesin(1 e")dx 2v + 1 1 +y2 g) tanxdx 1-w2 taã¡ (z) sec2(z) dz 1 + 4y'2 i) sec(r/2) tan(x/2) dx 1 - 9w2