Notice: The following blog entry contains math. And yet the surgeon general has determined that it is easily readable. So soldier on.
A friend of mine is a freshman in a college math class, and she occasionally asks me to review or help answer some homework assignment questions via e-mail.
She sent me this question:
2) Consider the curve defined by the equation y+cosy= x+1 [0,y][y,2pi]
a) find dy/dx in terms of y
Being 15 years removed from this stuff, I decided to Google the phrase "dy/dx in terms of y" hoping that I could get a refresher on the basics. And guess what? The first item found in the search was this one:
http://answers.yahoo.com/question/index?qid=20071019001332AAg5HRU
It not only provided a sample problem to illustrate how to solve for dy/dx generally, it provided the EXACT PROBLEM from her assignment. The odds against this are incalculable. Someone's deity hard at work!
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