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BabaBlast [244]
3 years ago
10

PLEASE HELP !!! Knowing cos (2π/3) =−1/2, find another trigonometric equation in radians from any quadrant that would also equal

−1/2.
Mathematics
1 answer:
kolezko [41]3 years ago
5 0

Answer:

cos(4π/3) = -1/2

Step-by-step explanation:

cos(4π/3) = -1/2

Cos is negative in Quadrants 2 and 3

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