-1
-----------------
______________
/ 2
\/ 1 - (x - 1)
$$- \frac{1}{\sqrt{- \left(x - 1\right)^{2} + 1}}$$
-(-1 + x)
------------------
3/2
/ 2\
\1 - (-1 + x) /
$$- \frac{x - 1}{\left(- \left(x - 1\right)^{2} + 1\right)^{\frac{3}{2}}}$$
/ 2 \
| 3*(-1 + x) |
-|1 + -------------|
| 2|
\ 1 - (-1 + x) /
---------------------
3/2
/ 2\
\1 - (-1 + x) /
$$- \frac{\frac{3 \left(x - 1\right)^{2}}{- \left(x - 1\right)^{2} + 1} + 1}{\left(- \left(x - 1\right)^{2} + 1\right)^{\frac{3}{2}}}$$