Classify each of the following differential equations by stating the order, the dependent and independent variables and whether the equation is ordinary or partial. (d) √√8-4t (b) (c) 827 əx² xyy' + = + 827 dz20 (y'')³ (e) (f) d³8 dt3 = y" = [1 + y/213/2 d(uv) = v2 dv

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