2 x - 1 ------ 2*x
/ 2 \ d |x - 1| --|------| dx\ 2*x /
Apply the quotient rule, which is:
and .
To find :
Differentiate term by term:
The derivative of the constant is zero.
Apply the power rule: goes to
The result is:
To find :
The derivative of a constant times a function is the constant times the derivative of the function.
Apply the power rule: goes to
So, the result is:
Now plug in to the quotient rule:
Now simplify:
The answer is:
2
1 x - 1
2*x*--- - ------
2*x 2
2*x
2
-1 + x
-1 + -------
2
x
------------
x
/ 2\
| -1 + x |
3*|1 - -------|
| 2 |
\ x /
---------------
2
x