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Functions
medium
0:00.0
Calculate
(
f
∘
f
)
(
2
)
(f \circ f)(2)
(
f
∘
f
)
(
2
)
if
f
(
x
)
=
x
2
−
5
f(x) = x^2 - 5
f
(
x
)
=
x
2
−
5
.
A
-4
B
-1
C
11
D
4
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