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Mathematics
Mathematics
Problem
In the interval
0
≤
x
<
2
π
0\le x<2\pi
0
≤
x
<
2
π
, at which of the following values is
csc
x
\csc x
csc
x
undefined? a)
π
2
\dfrac{\pi}{2}
2
π
b)
π
\pi
π
c)
2
π
2\pi
2
π
d)
5
π
4
\dfrac{5\pi}{4}
4
5
π
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