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PT1 x +√ ( x^2 +1) +√ ( y^2 +1) = 2; PT2 y^2 + 2y + 2 = ( y+2)√( x^2 +1)

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#1
Thao ManUtd

Thao ManUtd

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pt1  x +√ ( x^2 +1) +√ ( y^2 +1) = 2;  

pt2 y^2 + 2y + 2 = ( y+2)√( x^2 +1)







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