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<response><unit><id>812b69e5-31be-43a8-adf1-637323ad0c65</id><parent_id>dffb6dbc-ff57-4210-ace7-3dcc1c6ca504</parent_id><number>2.6.4.5</number><names>[{"lang":"es","name":"Ecuación de la parábola vertical con vértice genérico"},{"lang":"en","name":"Equation of the vertical parabola with generic vertex"},{"lang":"ca","name":"Equació de la paràbola vertical amb vèrtex genèric"}]</names><difficulty>7</difficulty><created>18/7/16 11:43</created><modified>18/7/16 11:43</modified></unit></response>
