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13 Nov 2019
need the steps and the right integral
2 Your final answer is correct and your work in evaluating the first and last of the three integrals above is correct. However, re-check the set-up in the middle integral. First, is the upper limit of integration equal to -1 or should there be a relationship between the upper limit of integration of the middle integral and the lower limit of integration of the last (or third) integral. Finally when considering the area between two curves f(x) and g(x) where f(x) lies above g(x) on the entire interval from a to b, the integrand would be f(x) -g(x). In your case as you consider the area between the curves y = 0 (the x-axis) and y x2 + x-2 which graph lies above the over graph over the middle interval over which you're integrating t1
need the steps and the right integral
2 Your final answer is correct and your work in evaluating the first and last of the three integrals above is correct. However, re-check the set-up in the middle integral. First, is the upper limit of integration equal to -1 or should there be a relationship between the upper limit of integration of the middle integral and the lower limit of integration of the last (or third) integral. Finally when considering the area between two curves f(x) and g(x) where f(x) lies above g(x) on the entire interval from a to b, the integrand would be f(x) -g(x). In your case as you consider the area between the curves y = 0 (the x-axis) and y x2 + x-2 which graph lies above the over graph over the middle interval over which you're integrating t1
Elin HesselLv2
21 Aug 2019