How to find the domain and range on hp prime g2?

[batx27]

Hey I'm really lazy and don't wanna graph a function and then find the domain and range on my own.

I looked through the CAS catalogue and saw that there was a domain function, and put in the function x^7(orginally was f(x)=x^7). It just came back with X.

I then looked for a range function, but there was none.

Are there any functions for finding the domain and range? I know the Ti Nspire CX II Cas has them, but only the domain works properly.

Any help would be great.

[parisse]

domain(x^7) returns x because there is no domain restriction.
Compare to domain(sqrt(x)) or domain(1/x)