\(\cot(\alpha) \cdot a = \cos(\alpha) \cdot b\)

\(\cos(\alpha) \cdot c = \sin(\alpha) \cdot a\)

\(\tan(\alpha) \cdot b = \cos(\alpha) \cdot c\)

\(\tan(\alpha) \cdot b = \sin(\alpha) \cdot c\)

\(\sin(\alpha) \cdot c = \cos(\alpha) \cdot a\)

\(\cot(\alpha) \cdot a = \sin(\alpha) \cdot b\)