Level:
Project ID:
9000070708
Source Problem:
Accepted:
1
Clonable:
1
Differentiate the following function.
\[
f(x) =\ln \left (\frac{1 + x}
{1 - x}\right )
\]
\(f^{\prime}(x) = \frac{2}
{1-x^{2}} ;\ x\in \left (-1;1\right )\)
\(f^{\prime}(x) = \frac{2}
{1-x^{2}} ;\ x\in \mathbb{R}\setminus \left \{-1;1\right \}\)
\(f^{\prime}(x) = \frac{1-x}
{1+x};\ x\in \left (-1;1\right )\)
\(f^{\prime}(x) = \frac{1-x}
{1+x};\ x\in \mathbb{R}\setminus \left \{-1;1\right \}\)