Function Expression :
\[f(x)=\frac{-7}{(x. x-1.-1 )} \]Domain
\[]-\infty ;+\infty [ \]Limits
\[\lim_{x \rightarrow-\infty}f(x) = 0 \]\[\lim_{x \rightarrow+\infty}f(x) = 0 \]
\[ \]
Derivate
\[f^{\,\prime}(x)=\frac{14 x}{\left(x x - 1 \left(-1\right)\right)^{2}} \]\[f^{\,\prime}(x)=\frac{14 x}{\left(x^{2} + 1\right)^{2}} \]
\[ \]
Integral
\[F(x) = - 7 \operatorname{atan}{\left(x \right)} \]Sign Table
Variation Table
Plot
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