Find the Exact Value cos(600)

Math
Remove full rotations of ° until the angle is between ° and °.
Apply the reference angle by finding the angle with equivalent trig values in the first quadrant. Make the expression negative because cosine is negative in the third quadrant.
The exact value of is .
The result can be shown in multiple forms.
Exact Form:
Decimal Form:
Find the Exact Value cos(600)

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