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What is the value of cos-1(-1/2)
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What is the value of cos-1(-1/2)

User Theo Strauss
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2 Answers

4 votes

Answer:

2pi/3

Explanation:

PLATO ANSWER

User Jonnny
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7.9k points
6 votes

Answer:

120 degrees or 2 pi/3

Explanation:

cos ^ -1 (-1/2)


Using the unit circle, we look for the x value of -1/2. Cos is the x value, sin is the y value. We find -1/2 at 120 degrees or 2 pi/3


What is the value of cos-1(-1/2)-example-1
User The Student Soul
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