7.
Aşağıdaki fonksiyonlardan hangileri bire bir fonksi-
yondur?
=
1. f:
ZZ, f(x) = x² + 1
II. g:z* →Z, g(x) = x2 + 1
III. 'h: R → R, h(x) = 5
IV. k:ZŰZ, k(x) = 2x + 1
A) Yalnız II
B) Yalnız IV
C) I ve IV
D) II ve IV - E) I, II ve IV
Bu soruya bakabilir misin acill
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