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Mathematics
Mathematics
Problem
Calculate
tan
(
−
19
π
4
)
\tan\left(-\dfrac{19\pi}{4}\right)
tan
(
−
4
19
π
)
. a)
3
\sqrt{3}
3
b)
−
1
-1
−
1
c)
1
1
1
d)
0
0
0
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