determine whether the DE is exact:
y^2dx - x^2dy=0
Stacey Warren - Expert brainly.com
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ahh..... and what is the exact method? :)
use 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
ive seen that in the textbooks before, but cant recall the details of it :)
a 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.