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Mathematics
Mathematics
Problem
Find number of points
(
x
,
y
)
(x, y)
(
x
,
y
)
in
x
y
xy
x
y
plane with both
x
x
x
and
y
y
y
integers which satisfy
∣
x
∣
+
∣
y
∣
<
100
|x| + |y| < 100
∣
x
∣
+
∣
y
∣
<
100
(a) 19801 (b) 20000 (c) 19404 (d) 19602
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