3. Evaluate the following integrals. Make sure to appropriate justify your solutions. (a) 1 -dx. x In(x) (b) 1' VI - 1 di. (c) In(r + 2)dx. (d) cos (3.r) -d.x. (5 + 2 sin(3.x)) (e) ertl sin(x) dx. (F) 1 (1 + vx) dx. (g) Vie 2 Vi dx. 1 (VI - 2)2dr. 2 (1 + Vx)4 VI dx. (1) sin'(2x) dr. (m) xsec '(r)dr. In(x) d.x. (o ) 2 cos( r + 1 ) dr . (p) tan'(x) sec?(x) dx