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What is the exact value of sine of 8 pie/3

What is the exact value of sine of 8 pie/3
asked 155k views
5 votes
What is the exact value of sine of 8 pie/3

asked
User Olejs
by
8.5k points

2 Answers

4 votes

Answer:

−1/2

Step-by-step explanation:

cos(8π/3)

=cos(8π/3 − 2π)

=cos(2π/3) = − cos (π/3) = −1/2

answered
User Panagiotis Drakatos
by
7.6k points
1 vote

Answer:

0.1456858

Step-by-step explanation:

Hope it help

answered
User Aleju
by
8.9k points
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