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anonymous
 5 years ago
determine whether the DE is exact:
y^2dx  x^2dy=0
anonymous
 5 years ago
determine whether the DE is exact: y^2dx  x^2dy=0

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amistre64
 5 years ago
Best ResponseYou've already chosen the best response.1[S] dy/(y^2) = [S] dx/(x^2)

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.1DE is exact? whats that mean? :)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0using the exact method

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.1ahh..... and what is the exact method? :)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0use the test for exactness: take partial derivative of M with respect to y and partial derivative of N with respect to x and see if they provide the same answer .....its more complicated. the exact method is a part of solving differential equations

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.1ive seen that in the textbooks before, but cant recall the details of it :)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0a DE is exact if partial derivative of coefficient of x with respect to y is equal to partial derivative of coeff of y with respect to x. It an equation is exact there is an easy method to solve it.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0correction; coefficients of dx and dy
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