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How to state the exact values for trigonometric ratios with the following: cos (-4π/3)

How to state the exact values for trigonometric ratios with the following: cos (-4π/3)
asked 220k views
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How to state the exact values for trigonometric ratios with the following:

cos (-4π/3)

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User Bart K
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9.1k points

1 Answer

2 votes
Cos)-4pi/3)
= cos(2pi-4pi/3)
=cos(2pi/3)
= -cos(pi/3)
= -0.5
answered
User Rking
by
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