I have put the questions in an attachment.
For question 4.a) I'm not sure what it's asking for. Does it mean the area between 0 and 3? Any ideas ?
For question 4.b) and 5 unsure on the integration.
For question 6.b) How do i explain why this shows that the equation Inx - e^(-x) has only one solution ??????
Thanks Stacy Goodwin