Marcop

Thanks again Alan,

Again, I did not do the initial integration properly.  

I must have been off with the pixies yesterday.

I'll try some more today.

Hopefully, the pixies will be covering from yesterday's party.

Thanks so much.  

Thanks very much Alan,    

I just differentiated inverse tan incorrectly.

It was a careless mistake that I kept overlooking    

Thank you but I was really hoping for specific answers to these sentences.

Thanks Alan and Melody.

This will give me lots to chew on :)