Znamy poniżej, fa{ x(t) } =X( f)(1)(1)fa{x(t)}=X(fa) \mathscr{F}\big\{x(t)\big\}=X(f) \tag{1} fa{ x(-t) } =X( - f)(2)(2)fa{x(-t)}=X(-fa) \mathscr{F}\big\{x(-t)\big\}=X(-f) \tag{2} fa{x∗( t ) } =X∗( - f)(3)(3)fa{x∗(t)}=X∗(-fa) \mathscr{F}\big\{x^*(t)\big\}=X^*(-f) \tag{3} Teraz, jeśli jakiś...