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The area under the graph of y = and above the x-axis between x = a and x = b is given by tan "'b - tan 'a. See the figure Find the area 1 +x 1 under the graph y = and above the x-axis (a) between x =0 and x = 3 and (b) between x = - 1 and x = $3. 1+x b 2 1 1/3 (a) The area under the graph y = and above the x-axis between x = 0 and x = 3 is 1 + x (Type an exact answer, using at as needed. Use integers or fractions for any numbers in the expression.)