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Mathematics
Mathematics
Problem
How many real numbers
x
x
x
in the interval
[
0
,
4
π
]
[0,4\pi]
[
0
,
4
π
]
satisfy
sin
x
=
1
\sin x = 1
sin
x
=
1
? a)
3
3
3
b)
2
2
2
c)
4
4
4
d)
1
1
1
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