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Mathematics
Mathematics
Problem
Between
x
=
−
π
2
x=-\dfrac{\pi}{2}
x
=
−
2
π
and
x
=
3
π
2
x=\dfrac{3\pi}{2}
x
=
2
3
π
(end-points excluded), how many points satisfy
tan
x
=
1
\tan x =1
tan
x
=
1
? a)
4
4
4
b)
1
1
1
c)
2
2
2
d)
3
3
3
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