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Mathematics
Mathematics
Problem
7. If
sin
(
θ
−
π
/
2
)
=
0.73
\sin (\theta-\pi / 2)=0.73
sin
(
θ
−
π
/2
)
=
0.73
, find
cos
(
−
θ
)
\cos (-\theta)
cos
(
−
θ
)
.
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