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Mathematics
Mathematics
Problem
Show that for any real numbers
a
a
a
and
b
b
b
and any negative real number
c
c
c
, the inequality
a
c
≥
b
c
ac \ge bc
a
c
≥
b
c
implies
a
≤
b
a \le b
a
≤
b
. Give a brief justification.
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