7.3 (S2.)

7.3 (S2.)

Jaimie Camara 30 Nov 2010 01:29

Hi Dana,
I am not sure which property to use to write this as a single definite integral. I took a shot in the dark and thought about this problem as simply adding the net area under the curve of three different functions but this didn't help much. I guessed at the answer being the sum from -2 to 5 of f(x)dx. Im almost positive this is wrong, a hint may help.
Thanks

Re: 7.3 (S2.)

Dana Ernst 30 Nov 2010 14:30

Is it clear that the first two integrals added together would yield the net signed area under the curve from -2 to 5? The third integral is taking away (because of the subtraction) some of this area. What are you left with?