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Mathematics
Mathematics
Problem
Given that
θ
\theta
θ
lies in Quadrant III and
cos
θ
=
−
3
5
\cos\theta = -\dfrac{3}{5}
cos
θ
=
−
5
3
, find
sin
(
2
θ
)
\sin(2\theta)
sin
(
2
θ
)
.
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