Question:
27. Solution of differential equation (x ^ 2)/(1/(x ^ 2) + y ^ 2) * (xdy + ydx) + y ^ 2 * (xdy - ydx) = 0
arctan(xy) - 1/2 * (y/x) ^ 2 = c
b) arctan(xy) + 1/2 * (y/x) ^ 2 = c
c) arctan(xy) - 1/2 * (y/x) ^ 3 = c
d) none of these
and
Answer:
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