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Modular Arithmetic
hard
0:00.0
How many solutions for
x
2
≡
1
(
m
o
d
24
)
x^2 \equiv 1 \pmod{24}
x
2
≡
1
(
mod
24
)
?
A
8
8
8
B
4
4
4
C
2
2
2
D
16
16
16
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