1. Find the general solution of (general integral) of the differential equation.

1.15 (cos (x - 2y) + cos (x + 2y)) y '= secx


2. Find the general solution of (general integral) of the differential equation.

2.15 2xyy = 1 - x2


3. Find the general solution of (general integral) of the differential equation.

3.15 yx + x + y = 0


4. Find a particular solution of (partial integral) of the differential equation.

4.15 y = x (y - xcosx), y (? / 2) = 0.


5. Find the general solution of the differential equation.

5.15 xy - 2vx3y = y

Detailed solution. Designed in PDF format for easy viewing of IDZ solutions on smartphones and PCs. In MS Word (doc format) sent additionally.