126k views
3 votes
How do I evaluate cos 4π/3?

User Latesha
by
4.9k points

2 Answers

2 votes

Answer:

Explanation:


cos ((4 \pi )/(3) )=cos (\pi +(\pi )/(3) )=-cos ((\pi )/(3) )=-(1)/(2)

User Nickjb
by
5.5k points
1 vote

Answer:

-1/2

Explanation:

cos (4π/3)= cos (π+π/3)

User Rubans
by
5.8k points
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