Question

$u {}^{2} - v {}^{2} = 1 \\ 2v + v = 2$
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Answer 1

u²-v²=1

2v+v=2---> 3v=2-------> v=2/3

substituindo:

u²-(2/3)²=1

u²-4/9=1

u²=1+4/9

u²=9+4/9

u²=13/9

u=√13/3

v=2/3 e u=√13/3