0
sin(0) = 0, sin(90) = 1, sin(180) = 0, sin (270) = -1
cos(0) = 1, cos(90) = 0, cos(180) = -1, cos (270) = 0
tan(0) = 0, tan (180) = 0.
cosec(90) = 1, cosec(270) = -1
sec(0) = 1, sec(180) = -1
cot(90)= 0, cot(270) = 0
The rest of them:
tan(90), tan (270)
cosec(0), cosec(180)
sec(90), sec(270)
cot(0), cot(180)
are not defined since they entail division by zero.
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90 degrees 180 degrees 270 degrees 360 degrees!
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An angle of 180 degrees is a straight line
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reflex
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benchmark angle=0 degrees, 90 degrees, 180 degrees, 270 degrees, and 360 degrees
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A dingo can turn its head up to 270 degrees
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180 degrees.
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