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

User Olejs
by
7.6k 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

User Panagiotis Drakatos
by
6.6k points
1 vote

Answer:

0.1456858

Step-by-step explanation:

Hope it help

User Aleju
by
7.8k points
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