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Divisibility
medium
0:00.0
If
n
≡
7
(
m
o
d
11
)
n \equiv 7 \pmod{11}
n
≡
7
(
mod
11
)
, what is
n
2
(
m
o
d
11
)
n^2 \pmod{11}
n
2
(
mod
11
)
?
A
5
B
7
C
49
D
60
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