4 e-e- Use u-substitution to determine the approximate value of J pile-r dx. Show all work . For an indefinite integral, use the notation INT in place of the symbol. For example, S (2 + 1) dx should be written as INT ( + 1) dc. For a definite integral, use the notation INT (a, b). For example, S (a + 1) da should be written as INT (1, 2) ( + 1) dx. For a definite integral that has been integrated, use the notation EVAL (a, b). For example, should be written as 2 + x EVAL (1, 2)