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Topic: positive exponents
Replies: 7   Last Post: May 13, 1995 1:20 PM

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Posts: 5
Registered: 12/6/04
Re: positive exponents
Posted: May 12, 1995 7:00 PM
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John Forrest wrote:

> The problem I thought I'd run into in the classroom, which has
> NOT occurred, is the confusion of sin^-1(x)---that is, arcsin(x)---with
> 1/sin(x)---that is, csc(x).

Boy, I've run into this! At least a third of my Algebra II Trig students
have asked about this in class. A gentle reminder usually works, but they
wish -1 had not been set up to mean inverse function as well as reciprocal.
And I wonder why as well; there are plenty of other unused symbols. I would
have suggested an upside-down f to stand for f-inverse.

Ben :D
Ben Dillon (
St. Joe HS, South Bend, IN
"Why, sometimes I've believed as many as six impossible things before

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