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