Domain for derivative of inverse circular functions?

[dekoyl]

Just a general question..
Is it compulsory to put the restrictions when finding the derivative of an inverse circular function?

Eg:

Thanks


PS. Hmm is it me or is Latex down again?


Edit: Yeah TrueTears - I'm using Essentials and that's what got me wondering =]

[TrueTears]

lol yeah i think its down, i can't see latex -_-

but for your question, the essentials book tend to put the domain, so i'd just put it in case, but if that was only in your working out for a bigger questions, then there is no need.

but if a question just said find the derivative of blah blah blah... then i'd put it, i'm not sure if you will get marks deducted for not putting it, maybe someone could confirm this.

[dcc]

but if a question just said find the derivative of blah blah blah... then i'd put it, i'm not sure if you will get marks deducted for not putting it, maybe someone could confirm this.

Be careful if they ask for the 'derivative function', as a function definition does require a domain to be stated (I wouldn't worry about the codomain, however)

[TrueTears]

but if a question just said find the derivative of blah blah blah... then i'd put it, i'm not sure if you will get marks deducted for not putting it, maybe someone could confirm this.

Be careful if they ask for the 'derivative function', as a function definition does require a domain to be stated (I wouldn't worry about the codomain, however)

ah yes, thanks dcc