The salesmen has observed that many students are looking for cars that cost less than 5000 .If he decides to also deal in cars t
1 answer:
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Recall that
There are three cases to consider:
(1) When
, we have 
and 
, so
(2) When
and 
, we get 
and , so
(3) When
, we have and 
, so
So
There are three cases to consider:
(1) When
(2) When
(3) When
So
