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Approximate the value of the given integral by completing parts (a) and (b) below. (a) Use the trapezoidal rule, using n = 4. (b) Check by direct integration. N 2x 2 dx 0 (a) Use the trapezoidal rule to approximate the integral. N [2x 2 dx x 0 (Type an integer or a decimal.) (b) Find the exact value of the integral by integration. 2 2 x 2 dx = [ 0 (Type an integer or decimal rounded to two decimal places as needed. )