Exercise unit 1 differential equation (hum3032)

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HUM 3032 2014 EXERCISE : UNIT 1 DIFFERENTIAL EQUATION 1. Determine the order and degree for the following : (a) 0 y 2 yy 3 ) y ( 2 ' 2 ' = + (b) 0 dx y d ) dx y d ( 3 2 2 2 3 3 = + (c) 0 xy dx dy 2 = + 2. Solve the following by using separable of variables. (a) 2 3 y x dx dy = (b) 1 ) 0 ( y ; y e dx dy x = = (c) ) y 1 ( x 3 dx dy 2 2 + = 3. Solve the following by using the method of Integrating Factor. (a) 6 y 3 dx dy = (b) x y x 4 dx dy = + (c) 1 ) 2 ( y ; 1 y y xy dx dy = + = (d) 1 ) 0 ( y ; 2 y 7 dx dy = =

Transcript of Exercise unit 1 differential equation (hum3032)

Page 1: Exercise unit 1 differential equation (hum3032)

HUM 3032 2014

EXERCISE : UNIT 1 DIFFERENTIAL EQUATION

1. Determine the order and degree for the following :

(a) 0y2yy3)y( 2'2' =+−

(b) 0dx

yd)dx

yd(3

2

22

3

3=

+

(c) 0xy

dxdy 2 =+

2. Solve the following by using separable of variables.

(a) 23yx

dxdy

=

(b) 1)0(y;

ye

dxdy x

==

(c) )y1(x3

dxdy 22 +=

3. Solve the following by using the method of Integrating Factor.

(a) 6y3

dxdy

=−

(b) xy

x4

dxdy

=+

(c) 1)2(y;

1yyxy

dxdy

=+−

=

(d) 1)0(y;2y7

dxdy

==−