[Math]-- ح’ـلول هوم وورك 6 (1.3) مع طريقة الحل ..}~

[man99]

ممكن حل دا السؤال


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

2
x 1
x > 2
(-, )
(-, 1]
.
(b) g f = 3

4
x > 2
(-, )
(-, 1]
x 1
.
(c) f f = 5

6
(-, 1]
(-, )
x 1
x > 2
.
(d) g g = 7

8
x 1
(-, 1]
(-, )
x > 2
.