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Mathematics
Problem
What is the minimum value of
f
(
x
)
=
∣
x
−
1
∣
+
∣
2
x
−
1
∣
+
∣
3
x
−
1
∣
+
⋯
+
∣
19
x
−
1
∣
f(x) = |x-1| + |2x-1| + |3x-1| + \dots + |19x-1|
f
(
x
)
=
∣
x
−
1∣
+
∣2
x
−
1∣
+
∣3
x
−
1∣
+
⋯
+
∣19
x
−
1∣
?
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