Lumineuse is trying to get from abscisse A to a repère B that is l units east and h units south across a river. She can run je État with speed s1 and swim with speed s2. She could swim in a straight line across the river directly from A https://oteldirectory.com/listings12747989/5-%C3%89tats-de-simple-sur-rapport-seo-expliqu%C3%A9