Question

exact differential equation

Answer 1

lag sucks today

Answer 2

What have you tried?

Answer 3

Im really having a hard time trying to check the exactness of this equation.

Answer 4

the answer of this should be y^2 lnx [(5x/(x+3)] - 3 cosy = c

Answer 5

if you know the answer then why ask?

Answer 6

it was just written at the last page of the book

Answer 7

which book?

Answer 8

name of the book?

Answer 9

elem diff equations by kells

Answer 10

which year of college/university/school are you in?

Answer 11

3rd

Answer 12

hey... denominator in first term must be x^2 then only equation will come exact and we cn solve...

Answer 13

can you help me with this? Thank you so much

Answer 14

suppose differential equation is :
P(x,y) dx + Q(x,y) dy=0
then if
dP(x,y)/dy that is differentiating term with dx with dy and similarly with Q ... and if both comes equal then our equation is exact...

Answer 15

oh god ness youre correct.. its x^2 not x^3

Answer 16

understood till this???

Answer 17

yes yes..

Answer 18

what would be the derivative of the first term?

Answer 19

you try... i will tell whether its correct or not.. den i will explain..

Answer 20

remember right now we r just checking the exactness..