Sunday, April 21, 2013
Interesting
What I liked about this last unit is how csc is the inverse of sin and sec is the inverse of cos. "Some people just want to watch the world burn"---Alfred ....I know that there is probably a logical reason why the "c" one goes with the "s" one and vice-versa but I prefer to think about it the other way, and that brings me amusement.
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It brings me amusement too. Here is what Dr. Math has to say about the history. http://mathforum.org/library/drmath/view/52578.html
ReplyDeleteThis makes more sense to think about how secant relates to the circle. The secant is a measurement found by taking the reciprocal of cosine. Therefore, the complement (sine) would have a reciprocal of cosecant.