hi, phil here. college student studying for degree in IT. need help with maths, especially integration. Thanks question 1 question 2 For problem like the one you have called question 1 you need to have some rough picture of the graphs of the functions. I want to call the functions
First find where the two graphs intersect, that is solve x^{2} + 2x + 3 = 2x + 4. I get x = 1 and x = 1. Thus my interest is the graphs between x = 1 and x = 1 and I know the required area is The picture in my mind is All that rremains before actually performing the integration is to determine which is the "top curve" and which is the "bottom curve". To do this I select some xvalue between x = 1 and x = 1. In this case the easiest xvalue is x = 0. Now find the values of f and g at x = 0. and g(0) = 4 Hence the required area is Harley
