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Question 23
If
f
(
x
)
=
x
2
−
1
and
g
(
x
)
=
√
x
+
1
, then
(
f
∘
g
)
(
x
)
=
√
x
2
−
1
+
1
x
+
2
√
x
|
x
|
x
None of the above
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