brooklynr1029 brooklynr1029

14-05-2020
Mathematics

contestada

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

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amna04352 amna04352

14-05-2020

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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