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Simplifying (y(ln(x) + -1ln(y))) * dx + -1(xln(x) + -1xln(y) + -1y) * dy = 0 Multiply ln * x (y(lnx + -1ln(y))) * dx + -1(xln(x) + -1xln(y) + -1y) * dy = 0 Multiply ln * y (y(lnx + -1lny)) * dx + -1(xln(x) + -1xln(y) + -1y) * dy = 0 ((lnx * y + -1lny * y)) * dx + -1(xln(x) + -1xln(y) + -1y) * dy = 0 ((lnxy + -1lny2)) * dx + -1(xln(x) + -1xln(y) + -1y) * dy = 0 Reorder the terms for easier multiplication: dx(lnxy + -1lny2) + -1(xln(x) + -1xln(y) + -1y) * dy = 0 (lnxy * dx + -1lny2 * dx) + -1(xln(x) + -1xln(y) + -1y) * dy = 0 Reorder the terms: (-1dlnxy2 + dlnx2y) + -1(xln(x) + -1xln(y) + -1y) * dy = 0 (-1dlnxy2 + dlnx2y) + -1(xln(x) + -1xln(y) + -1y) * dy = 0 Multiply lnx * x -1dlnxy2 + dlnx2y + -1(lnx2 + -1xln(y) + -1y) * dy = 0 Multiply lnx * y -1dlnxy2 + dlnx2y + -1(lnx2 + -1lnxy + -1y) * dy = 0 Reorder the terms: -1dlnxy2 + dlnx2y + -1(-1lnxy + lnx2 + -1y) * dy = 0 Reorder the terms for easier multiplication: -1dlnxy2 + dlnx2y + -1dy(-1lnxy + lnx2 + -1y) = 0 -1dlnxy2 + dlnx2y + (-1lnxy * -1dy + lnx2 * -1dy + -1y * -1dy) = 0 -1dlnxy2 + dlnx2y + (1dlnxy2 + -1dlnx2y + 1dy2) = 0 Reorder the terms: -1dlnxy2 + 1dlnxy2 + dlnx2y + -1dlnx2y + 1dy2 = 0 Combine like terms: -1dlnxy2 + 1dlnxy2 = 0 0 + dlnx2y + -1dlnx2y + 1dy2 = 0 dlnx2y + -1dlnx2y + 1dy2 = 0 Combine like terms: dlnx2y + -1dlnx2y = 0 0 + 1dy2 = 0 1dy2 = 0 Solving 1dy2 = 0 Solving for variable 'd'. Move all terms containing d to the left, all other terms to the right. Divide each side by '1'. dy2 = 0 Simplifying dy2 = 0 The solution to this equation could not be determined.
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