Supplementary Problems 1. Evaluate each integral by interpreting it in terms of signed Areas, ( 2 ) Adr (0) [( - 121 ) de (1 ) (2 - 12 + 1 1 ) de (o ) [ 2dx (8) | (27 + 2 ) da ( he ) [ Vo - I d ( ) [ le de 2. Given: ( feldr = 5. { {(x)dr, / 9(x) dx, and ( 9(2) dz = 1. Find the following (a) ['s( ) de 3. Use the definition of rdefinite integral as a limit of Riemann sum to evaluate the following definite integrals ( 0 ) [ ( 42 7 - 5x - 1) d (1 ) 6 ( 23 + 10 ) 18