Question: . (8 marks) Classify the following differential equations as linear or non-linear and give their order. Give your reasons (2m each), (a) 2d2y dt

. (8 marks) Classify the following differential equations as linear or non-linear and give their order. Give your reasons (2m each), (a) 2d2y dt dy + t dt (b) (1+ y2)y dy dt2 (c) + ty? = 0 + 2y = sint dy + t + y = e dt dt dy dy (d) dt3 dt +t- + (cos t) y = t

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