5
1
1. .
) 2( + 1)dx + (x2 1) (y 1)dy = 0;
) ( ) dx x2 dy = 0;
b) 
2. , .
3. , v w 
N , .. N = 1; 3; 5; 7; 9, g = 9,8 / 2. s t, t = 0 s = v = 0.
( ) .
2
1. .
) 
) 2 dy = (x3 + y3) dx;
) 
2. , .
3. 
(N = 2, 4, 6, 8, 10). , 0,4 .
5
3
1. .
) ( + 2)dx + (x2 + 1) dy = 0;
) ( 2 2) dx =2 x dy;
) 
2. , .
3. , v w N , .. N = 1; 3; 5; 7; 9, g = 9,8 / 2. s t, t = 0 s = v = 0.
( ) .
4
1. .
) (2 + )dx + (x2 )dy = 0;
) 2 dx = ( - x2)dy;
) 
2. , .
3. (N = 2, 4, 6, 8, 10). , 0,4 .
5
5
1. .
) d - (1 y2)d = 0;
) (2 2) dx + x2 dy = 0;
) 
2. , .
3. , v w N , .. N = 1; 3; 5; 7; 9, g = 9,8 / 2. s t, t = 0 s = v = 0.
|
|
|
( ) .
6
1. .
) 
) (2 2)d 2x d = 0;
) 
2. , .
3. (N = 2, 4, 6, 8, 10). , 0,4 .
5
