Find the solutions of the differential equations: (a) (x - y) dr + (3r + y)...

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Find the solutions of the differential equations: (a) (r- y)da + (3x + y) dy = 0; y(2) = -1; (b) Cos2 -y) de + xdy = 0; y(1) = 7; (c) (322 2)y' = 2xy; y(0) =-1 (x TO
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