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Modular Arithmetic
medium
0:00.0
Find
x
(
m
o
d
7
)
x \pmod{7}
x
(
mod
7
)
such that
x
2
≡
2
(
m
o
d
7
)
x^2 \equiv 2 \pmod{7}
x
2
≡
2
(
mod
7
)
.
A
2
2
2
B
3
3
3
C
4
4
4
D
5
5
5
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