cscx .cotx
---------------- = cotx
secx -1
1/senx - cosx/senx
----------------------------------- = cotx
1/cosx - 1
(1 - cosx)/senx
---------------------- = cotx
(1-cox )/cox
cosx(1-cox)
--------------------- = cotx
senx(1-cosx)
cosx
-------- = cotx
senx
cotx = cot x
csc²x -cot²x
------------------ = cos²x por identidad csc² = 1 +cot²x csc²x - cot²x =1 remplazo
sec²x
1
--------- = cos²x
sec²x
cos²x = cos²x
