Hello, javax!

A tricky one . . .

I need help on finding the domain of this function:

. .

We see that: .

This happens when is on the intervals:

. .

That is: . 2n+1)\pi\;\text{ for any integer }n " alt="2n\pi \:\leq\:\frac{1}{x} \:\leq\2n+1)\pi\;\text{ for any integer }n " />

Therefore: .

(I'll letexplain what happens when .)you