EXPLANATION
The contangent is the inverse of the tangent.
The tangent-1 of [tex]\tan ^{-1}N=\frac{adjacent\text{ cathetus}}{\text{opposite cathetus}}[/tex]Replacing terms:
[tex]\tan ^{-1}N=\frac{12}{35}=0.34[/tex]
Hence, the appropiate ratio that represents cotangent of 12:35
