come help me with maths

• vice_edge

  17 Aug 07, 13:43

  Find the eqns of the tangent to the curve x²-y²-2xy=4, with a slope of 1...
  
  stuck with this any pros ?
  
  ans : y=x-2 , y=x+2
• hiphop2009

  17 Aug 07, 13:43

  homework forum (click the link on my siggy)~