You can put this solution on YOUR website! FIND ALL SIX TRIGONOMETRIC FUNCTIONS FOR ANGLE OF 4PI/3 RADIANS?
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The reference angle for (4/3)pi is pi/3
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(4/3)pi is in Q3 where cos and tan are negative.
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sin = sqrt(3)/2
cos = -1/2
tan = -sqrt(3)
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csc = 2/sqrt(3)
sec = -2
cot = -1/sqrt(3)
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Cheers,
Stan H.
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