What is the value of the trigonometric function?
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tan(−7π/6)=
csc(π/4)=
cos(17π/3)=
-7pi/6 = 5pi/6
tan (5pi/6) = -1/sqrt (3) = - sqrt (3) / 3
csc (pi/4) = sqrt (2)
cos (17 pi / 3) = cos (5pi / 3) = 1/2
