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Mathematics
Mathematics
Problem
36. Use a calculator in degree mode to solve
cos
θ
=
3
/
7
\cos \theta=3 / 7
cos
θ
=
3/7
if
0
∘
≤
θ
≤
90
∘
0^{\circ} \leq \theta \leq 90^{\circ}
0
∘
≤
θ
≤
9
0
∘
.
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