y*cos(pi)=4+249*cos(x)/1000 y*sin(3)=249*sin(x)/1000

$$y cos{left (pi right )} = frac{249}{1000} cos{left (x right )} + 4$$

249*sin(x)
y*sin(3) = ———-
1000

$$y sin{left (3 right )} = frac{249}{1000} sin{left (x right )}$$

$$x_{1} = pi + {asin}{left (frac{left(4000 – sqrt{- 15937999 sin^{2}{left (3 right )} + 62001}right) sin{left (3 right )}}{249 sin^{2}{left (3 right )} + 249} right )}$$
=
$$pi + {asin}{left (frac{left(4000 – sqrt{- 15937999 sin^{2}{left (3 right )} + 62001}right) sin{left (3 right )}}{249 sin^{2}{left (3 right )} + 249} right )}$$
=

4.57219473035662 – 1.44796418289752*i

$$y_{1} = frac{-4000 + sqrt{- 15937999 sin^{2}{left (3 right )} + 62001}}{1000 sin^{2}{left (3 right )} + 1000}$$
=
$$frac{-4000 + sqrt{- 15937999 sin^{2}{left (3 right )} + 62001}}{1000 sin^{2}{left (3 right )} + 1000}$$
=

-3.92189600320268 + 0.49550518095164*i

$$x_{2} = pi + {asin}{left (frac{left(4000 + sqrt{- 15937999 sin^{2}{left (3 right )} + 62001}right) sin{left (3 right )}}{249 sin^{2}{left (3 right )} + 249} right )}$$
=
$$pi + {asin}{left (frac{left(4000 + sqrt{- 15937999 sin^{2}{left (3 right )} + 62001}right) sin{left (3 right )}}{249 sin^{2}{left (3 right )} + 249} right )}$$
=

4.57219473035662 + 1.44796418289752*i

$$y_{2} = – frac{4000 + sqrt{- 15937999 sin^{2}{left (3 right )} + 62001}}{1000 sin^{2}{left (3 right )} + 1000}$$
=
$$- frac{4000 + sqrt{- 15937999 sin^{2}{left (3 right )} + 62001}}{1000 sin^{2}{left (3 right )} + 1000}$$
=

-3.92189600320268 – 0.49550518095164*i