Im kinda new here and have been set some work outside of class to try and do, I have read through all of my examples and notes that I have and can't seem to find anything usefull to help me with these...
I believe they all involve differentiation and integration, so I have put them together. I have managed to do 3b luckily.. but not 100% sure its right.
Anyway here it is:
Any help is appreciated!