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Mathematics
Mathematics
Problem
Suppose
f
(
x
)
=
cos
x
f(x) = \cos x
f
(
x
)
=
cos
x
and
g
(
x
)
=
2
x
g(x) = 2x
g
(
x
)
=
2
x
. Solve for
0
≤
x
≤
2
π
0 \le x \le 2\pi
0
≤
x
≤
2
π
: a.
(
f
∘
g
)
(
x
)
=
1
(f \circ g)(x) = 1
(
f
∘
g
)
(
x
)
=
1
b.
(
g
∘
f
)
(
x
)
=
1
(g \circ f)(x) = 1
(
g
∘
f
)
(
x
)
=
1
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