I have two questions I'd like some help with.
Firstly what is dx ?
I tried doing it with trigonometric identities for but it became very nasty pretty fast. Any help would be great.
Also, this has been bugging me all day, and I can't see where I am wrong, though I must be... Why is the integral of yet
Because yet is not the same as
What am I doing wrong?
where is just as arbitrary as .
What do you notice?
BY the way, notice the use of the absolute value brackets NOT round brackets. The answers you gave are therefore also wrong for this reason too.