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Problem
Problem
If
f
(
x
)
=
2
x
−
1
f(x) = 2x - 1
f
(
x
)
=
2
x
−
1
then number of solutions of the equation
∣
f
(
x
)
∣
=
∣
f
(
∣
x
∣
−
1
)
∣
|f(x)| = |f(|x| - 1)|
∣
f
(
x
)
∣
=
∣
f
(
∣
x
∣
−
1
)
∣
is are (a) 1 (b) 2 (c) 4 (d) 8
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