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[" 35."418(4x^(2)-3y^(2)):(2x^(2)+5y^(2)...

[" 35."418(4x^(2)-3y^(2)):(2x^(2)+5y^(2))=12:19vec g uarr" ,al "x:y=?],[[" (a) "2:3," (b) "1:2]]

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