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Mathematics
Mathematics
Problem
How many lattice points
(
x
,
y
)
(x,y)
(
x
,
y
)
satisfy the simultaneous conditions
0
<
x
≤
3
0<x\le 3
0
<
x
≤
3
and
−
2
≤
y
≤
0
-2\le y\le 0
−
2
≤
y
≤
0
?
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