4. Evaluate the following indefinite integrals. (3) (-4x + x- 452 ) 5. Evaluate the integrals by making appropriate substitutions. (a) 4xx + Act (b) [sinxcos rat 6. Find the area between the graphs of /and g for x in the given interval (x) =3x +2g(x) = 1and-1sx = 27. Find the area of the region bounded above by the graph of f (x) = 2 - x' and below by p(x) = 1. (Hint: Find the interval of x by solving for intersections of the graphs.)