If
cos
θ
=
8
9
cosθ=
9
8
, t...
![subject](/tpl/images/cats/mat.png)
Mathematics, 25.10.2019 23:43 deanblackstone
If
cos
θ
=
8
9
cosθ=
9
8
, then what is the positive value of
sin
1
2
θ
sin
2
1
θ, in simplest radical form with a rational denominator?
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