I dont know if the expressions are real or not, thats what i want to do. I want to find the range when they are real. But since they are extremely complicated functions i was hoping plot would be enough to tell me as i have worked with other functions in different examples where they are complicated as well but stopped once they become complex.

@ecterrab This worked, but i was able to do it by hand off a simple trick. However i will use this method when i need. 

@Kitonum Ahh, thank you for that. Awesome. 

@Carl Love Thanks for that reply, it does work.