Complete the square in x and y to find a Cartesian equation of the form  or  for the given equation.x2 - y2 + 2x + 2y - 1 = 0

A.  -  = 1
B. (x + 1) 2 - (y - 1) 2 = 1
C. (y + 1) 2 - (x - 1) 2 = 1
D. (x + 1) 2 + (y - 1) 2 = 1


Answer: B

Mathematics

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