Let f(x,y) = (x2 − y2,2xy), where x > 0,y > 0. Let g be the inverse of f in a
neighborhood of f(2,1). Then the determinant of the Jacobian matrix of g at f(2,1) is
equal to
(round off to TWO decimal places)
Mathbot Says...
I wasn't able to parse your question, but the HE.NET team is hard at work making me smarter.