The expression
[tex]\cos \theta=\frac{\text{adjacent}}{\text{hypotenuse}}[/tex]
[tex]\begin{gathered} \cos \theta=x \\ \frac{\text{adjacent}}{\text{hypotenuse}}=\frac{x}{1} \end{gathered}[/tex][tex]\text{opposite}=\sqrt[]{1-x^2}[/tex][tex]\cot =\frac{adjacent}{\text{opposite}}=\frac{x}{\sqrt[]{1-x^2}}[/tex][tex]undefined[/tex]
