[amr 12]

Find each of the following functions and their domains.
f(x) = x2 - 2
g(x) = 4x - 3
(a) f g = 1

2
(-, 3]
x 2
x > 4
(-, )
.
(b) g f = 3

4
x 2
(-, 3]
(-, )
x > 4
.
(c) f f = 5

6
x > 4
(-, 3]
x 2
(-, )
.
(d) g g = 7

8
x > 4
x 2
(-, 3]
(-, )


ابغا حل هذا السؤالرقم 6في 1.3