Question: 1. Decide whether each equation is a partial differential equation or an ordinary dif- ferential equation. Also determine its order. (6 points), +'y-lu(t) dy

1. Decide whether each equation is a partial differential equation or an ordinary dif- ferential equation. Also determine its order. (6 points), +'y-lu(t) dy dt2 8 18 als du +u=zt (b) at (c) x - Vy = sinh

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