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Mathematics
Problem
Let
f
(
x
)
=
x
−
2
x
+
1
f(x)=\dfrac{\sqrt{x-2}}{x+1}
f
(
x
)
=
x
+
1
x
−
2
for
x
≥
2
x\ge 2
x
≥
2
. (i) State the domain of
f
f
f
. (ii) State the domain of
f
′
f'
f
′
. Express both answers in interval notation.
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