Thursday
September 18, 2014

Homework Help: Precalculus

Posted by Joe on Wednesday, December 2, 2009 at 1:53pm.

Sorry ok I was talking about on the unit circle how come the slope of the reference line (say if you were to angle pi/2, the reference line would be the positive y axis from y equals zero to y equals one, I think this line is called this, like if you were to draw pi/4 on the unit circle you would indicate this by drawing a line that is not on the circle arleady... this line is the line I'm referencing) how come the slope of this line or the first deriviative of it is equal to tangent

tan theta = (dsine(theta))/(dcos(theta))

???

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