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sweet_heart_3012


Xem giúp tớ vs 
Gải hệ pt :
[TEX]\log_{1+x} (1-2y+y^2) + \log_{1-y} (1+2x+x^2)=4[/TEX]
[TEX]\log_{1+x}(1+2y) + log_{1-y}( 1+2x)=2[/TEX]
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:M09:
Gải hệ pt :
[TEX]\log_{1+x} (1-2y+y^2) + \log_{1-y} (1+2x+x^2)=4[/TEX]
[TEX]\log_{1+x}(1+2y) + log_{1-y}( 1+2x)=2[/TEX]
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:M09:
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