1. Find the general solution of (general integral) of the differential equation.
1.20 y'ctgx + y = 2

2. Find the general solution of (general integral) of the differential equation.
2.20 √y2 + 1dx = xydy

3. Find the general solution of (general integral) of the differential equation.
3.20 xy + y2 = (2x2 + xy) y

4. Find a particular solution of (partial integral) of the differential equation.
4.20 (sin2y + xctgy) y '= 1, y (0) = π / 2.

5. Find the general solution of the differential equation.
5.20 2x3yy + 3x2y2 + 1 = 0

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