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4. Solve the following differential equations by separation of variables: (a) (b) (c) (d) ey dy dx da = dy 1 + x dy

4. Solve the following differential equations by separation of variables: (a) (b) (c) (d) ey dy dx da = dy 1 + x dy dx = =e-y+e-x-y. et dy da = 2x. xy+2y-x-2 xy-3y+x-3

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z 3 dy ydy dr 72 y dy x 2 dx y dy dre 2 dx Inx xy 12 21 72 Taking integrations to the both side ... blur-text-image

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