Use your calculator to find the value of
cos
(
120
∘
)
\displaystyle {\cos{{\left({120}^{\circ}\right)}}}
cos
(
120
∘
)
.
Round to 4 decimal places.
cos
(
120
∘
)
\displaystyle {\cos{{\left({120}^{\circ}\right)}}}
cos
(
120
∘
)
=
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