How do the trig graphs relate to unit
Circle?
A. Why Is the period for sine and cosine 2pi, whereas the period for tangent and cotangent is pi.
For a sine graph we know that sine is.postive.in the first to.quadrants and negative in quadtants 3and 4. Cosine is positive then negative, its a pattern that goes on forever. 2pi is how long it takes for each pattern to repeat itself. We are unwrapping the unit circle into a straight line.
A tangent and cotangent
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