Determine the exact value of the following expression.
$$\cos \left( 120 ^ { \circ } - 0 ^ { \circ } \right)$$
A) $- \frac { \sqrt { 3 } } { 2 }$
B) $\frac { 1 } { 2 }$
C) $\frac { \sqrt { 3 } } { 2 }$
D) $- \frac { 1 } { 2 }$
E) $\frac { 1 } { 2 } - \frac { \sqrt { 3 } } { 2 }$

Question

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The Answer of Determine the exact value of the following expression.
$$\cos \left( 120 ^ { \circ } - 0 ^ { \circ } \right)$$
A) $- \frac { \sqrt { 3 } } { 2 }$
B) $\frac { 1 } { 2 }$
C) $\frac { \sqrt { 3 } } { 2 }$
D) $- \frac { 1 } { 2 }$
E) $\frac { 1 } { 2 } - \frac { \sqrt { 3 } } { 2 }$

Determine the Exact Value of the Following Expression cos⁡(120∘−0∘)\cos \left( 120 ^ { \circ } - 0 ^ { \circ } \right)cos(120∘−0∘)

Determine the Exact Value of the Following Expression $\cos \left( 120 ^ { \circ } - 0 ^ { \circ } \right)$