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Friday, April 18, 2014

BQ#5 – Unit T Concepts 1-3


Why do sine and cosine NOT have asymptotes, but the other four trig graphs do? Use unit circle ratios to explain.
The Unit Circle has ratios for trig functions. Sin=y/r, cos=x/r, tan=y/x, csc=r/y, sec=r/x, and cot=x/y. The asymptote is only present when the denominator is equal to 0. However, since r is always equal to 1 in the Unit Circle triangles, this will give us an actual number value for sine and cosine. For us to have an asymptote, we would have to have an undefined answer like in the other four trig graphs give us.

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