acos(x - 3)
d --(acos(x - 3)) dx
-1 ----------------- ______________ / 2 \/ 1 - (x - 3)
-(-3 + x)
------------------
3/2
/ 2\
\1 - (-3 + x) /
/ 2 \
| 3*(-3 + x) |
-|1 + -------------|
| 2|
\ 1 - (-3 + x) /
---------------------
3/2
/ 2\
\1 - (-3 + x) /