(y-x+x*ycotx)dx+x*dy=0

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Solution for (y-x+x*ycotx)dx+x*dy=0 equation:


Simplifying
(y + -1x + x * ycotx) * dx + x * dy = 0

Multiply x * cotxy
(y + -1x + cotx2y) * dx + x * dy = 0

Reorder the terms:
(cotx2y + -1x + y) * dx + x * dy = 0

Reorder the terms for easier multiplication:
dx(cotx2y + -1x + y) + x * dy = 0
(cotx2y * dx + -1x * dx + y * dx) + x * dy = 0

Reorder the terms:
(cdotx3y + dxy + -1dx2) + x * dy = 0
(cdotx3y + dxy + -1dx2) + x * dy = 0

Multiply x * dy
cdotx3y + dxy + -1dx2 + dxy = 0

Reorder the terms:
cdotx3y + dxy + dxy + -1dx2 = 0

Combine like terms: dxy + dxy = 2dxy
cdotx3y + 2dxy + -1dx2 = 0

Solving
cdotx3y + 2dxy + -1dx2 = 0

Solving for variable 'c'.

Move all terms containing c to the left, all other terms to the right.

Add '-2dxy' to each side of the equation.
cdotx3y + 2dxy + -2dxy + -1dx2 = 0 + -2dxy

Combine like terms: 2dxy + -2dxy = 0
cdotx3y + 0 + -1dx2 = 0 + -2dxy
cdotx3y + -1dx2 = 0 + -2dxy
Remove the zero:
cdotx3y + -1dx2 = -2dxy

Add 'dx2' to each side of the equation.
cdotx3y + -1dx2 + dx2 = -2dxy + dx2

Combine like terms: -1dx2 + dx2 = 0
cdotx3y + 0 = -2dxy + dx2
cdotx3y = -2dxy + dx2

Divide each side by 'dotx3y'.
c = -2o-1t-1x-2 + o-1t-1x-1y-1

Simplifying
c = -2o-1t-1x-2 + o-1t-1x-1y-1

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