Category:Cotangent of Sum

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This category contains pages concerning Cotangent of Sum:


$\map \cot {a + b} = \dfrac {\cot a \cot b - 1} {\cot b + \cot a}$

where $\cot $ is cotangent.


Corollary

$\map \cot {a - b} = \dfrac {\cot a \cot b + 1} {\cot b - \cot a}$

Pages in category "Cotangent of Sum"

The following 3 pages are in this category, out of 3 total.