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Mathematics
Mathematics
Problem
Given that
sin
θ
=
4
5
\sin \theta = \dfrac{4}{5}
sin
θ
=
5
4
with
0
<
θ
<
π
2
0 < \theta < \dfrac{\pi}{2}
0
<
θ
<
2
π
, find the value of
cos
θ
\cos \theta
cos
θ
.
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