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2/y=x/1
Xy=2.
X=2/y
X^2-y^2=1
4/y^2-y^2=1
y^4+y^2-4=0
y^2=(-1+√17)/2=1,52
y=√1,52=1.23288 AND X=2/Y=1.622
y=1,3. تقريبا
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