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Mathematics
Mathematics
Problem
Find the values of
sin
(
7
π
6
)
\sin\left(\dfrac{7\pi}{6}\right)
sin
(
6
7
π
)
and
cos
(
7
π
6
)
\cos\left(\dfrac{7\pi}{6}\right)
cos
(
6
7
π
)
.
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