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Differential EquationsEasyThe Wronskian & Variation of Parameters

The Wronskian & Variation of Parameters · Easy problem

Two functions satisfy W(y1,y2)=5W(y_1,y_2)=5 on an interval. Compute W(2y1+y2, y1−3y2)W(2y_1+y_2,\ y_1-3y_2).