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Mathematics
Problem
Let
f
:
R
→
R
f: \mathbb{R}\to\mathbb{R}
f
:
R
→
R
be defined by
f
(
x
)
=
3
x
−
1
f(x)=3x-1
f
(
x
)
=
3
x
−
1
. Find the value of
(
I
R
∘
f
∘
I
R
)
(
2
)
(I_{\mathbb{R}}\circ f\circ I_{\mathbb{R}})(2)
(
I
R
∘
f
∘
I
R
)
(
2
)
. a)
6
6
6
b)
5
5
5
c)
2
2
2
d)
7
7
7
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