For which value of k does the following pair of equations yield a unique solution for x, such that the solution is positive?
(x - k)^2 - y^2 = 8
(x + 2k)^2 + (y^2 - k^2) = 0
A) 4/root(7)
B) root(7)/ 4
C) root(2)
D) -4/root(7)
E) None of these.
The OA is D.
I need help. There are too many variables.
(x - k)^2 - y^2 = 8
(x + 2k)^2 + (y^2 - k^2) = 0
A) 4/root(7)
B) root(7)/ 4
C) root(2)
D) -4/root(7)
E) None of these.
The OA is D.
I need help. There are too many variables.
