Consider this integral: 0 gr:2 L05 6 d '7\" What answer does Graphmatica give using 4 rectangles and lefthand sums? Use 4 decimal places in your answer. Consider this integral: 0 332 I415 e d :1: What answer does Graphmatica give using 8 rectangles and lefthand sums? Use 4 decimal places in your answer. a Consider of (x) da for the function shown in the graph below : Will the answer be positive, negative or 0? positive O negative Oo\fConsider Sin f (x)dx for the function shown in the graph below : Will the answer be positive, negative or 0? positive O negative OoThe shaded region is represented by: fa fr dr What is the value of a?The shaded region is represented by: What is the value of b