Question

Question #7db36

Answer 1

`RR - ZZ`.

Explanation:

Prerequisite : `sintheta=0hArrtheta=kpi, k in ZZ`.

`:."The Domain of the fun. "f=RR-{x in RR | sin(pix)=0}`.

`=RR-{x in RR | pix=kpi, k in ZZ}`.

`=RR-{x in RR | x=k, k in ZZ}`,

`=RR-ZZ`.