Question: For a, I got the opposite sign for c, which is Y= x/-lnx + c. However, the right answer is Y= x/-lnx - c. Could

For a, I got the opposite sign for c, which is Y= x/-lnx+c. However, the right answer is Y= x/-lnx-c. Could someone please explain where did I get wrong?

3. By choosing suitable substitutions, find the solutions to the following differential equations dy = ry + y' (b) - dy _ 23 + 4y3 dx dx 3xy2 2 dy - xy = y In = 1 -2 - 1 2 = y- = - V dy JOC dy -y z - J y = 1 +3 + 2 - - 2 I = e * . 2 = - Inxc + c = JU - duse + c = X 4. Use the substitution z(x) = [y(x)]-3 to solve the differential equation Y = dy y_ (xy ) 4 - Inc - c

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