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Vectors & Spaces
easy
0:00.0
What is
(
1
,
2
)
⋅
(
−
2
,
1
)
(1, 2) \cdot (-2, 1)
(
1
,
2
)
⋅
(
−
2
,
1
)
?
A
-4
B
0
C
4
D
2
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