Question

solve the differential equation (tan-1 y –x)dy=(1+y2)dx

Answer 1

:)

Answer 2

convert into the form of
dx/dy + x(f(y)) = g(y)

integrating factor then becomes e^(integral f(y)dy )

hope this helps..

Answer 3

can you retype the question

Answer 4

After rearrange to 1st order linear, set integrating factor to

e^(arctan y) (I think:-)