9000070708

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Project ID: 
9000070708
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1
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1
Určete první derivaci funkce \(f\colon y =\ln \left (\frac{1+x} {1-x}\right )\).
\(f^{\prime}(x) = \frac{2} {1-x^{2}} ;\ x\in \left (-1;1\right )\)
\(f^{\prime}(x) = \frac{2} {1-x^{2}} ;\ x\in \mathbb{R}\setminus \left \{-1;1\right \}\)
\(f^{\prime}(x) = \frac{1-x} {1+x};\ x\in \left (-1;1\right )\)
\(f^{\prime}(x) = \frac{1-x} {1+x};\ x\in \mathbb{R}\setminus \left \{-1;1\right \}\)