Soru:
1. f: R →R, f(x)= x II. f: Z → R, f(x)= x+1 2 III. f: NR, f(x)= x-1 X wwwwwww IV. f: R → R, f(x) = x² +5 V. f: R → R, f(x) = 3x
1. f: R →R, f(x)= x II. f: Z → R, f(x)= x+1 2 III. f: NR, f(x)= x-1 X wwwwwww IV. f: R → R, f(x) = x² +5 V. f: R → R, f(x) = 3x - 7 9 Yukarıdakilerden kaç tanesi fonksiyondur? A) 1 B) 2 C) 3 D) 4 E) 5