/ _______\ atan\\/ 3 - x /
atan(sqrt(3 - x))
-1 ------------------- _______ 2*\/ 3 - x *(4 - x)
1 2 ----- - ------ 3 - x -4 + x -------------------- _______ 4*(-4 + x)*\/ 3 - x
1 3 1 --------- + ---------- - ------------------ 2 2 2*(-4 + x)*(3 - x) (-4 + x) 8*(3 - x) ------------------------------------------- _______ (-4 + x)*\/ 3 - x