SOLUTION: How do you find the exact values of cos^-1(-1/2)?
a. π/2
b. π/3
c. 3Ï€/2
d. 0
e. 2Ï€/3
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Question 1170367: How do you find the exact values of cos^-1(-1/2)?
a. π/2
b. π/3
c. 3Ï€/2
d. 0
e. 2Ï€/3
Answer by Solver92311(821) (Show Source): You can put this solution on YOUR website!
)
is the same as )
and means "the angle whose cosine is 
.
Find the points on the unit circle that have an -coordinate of 
and read the angles.
John
My calculator said it, I believe it, that settles it
From
I > Ø
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