Respuesta :

vinyl50098
This is pretty simple.

If you have a sheet that tells you your identities then you should see that 
[tex]1+cot^{2}=csc^{2} [/tex]
Just change
[tex]1+cot^{2}[/tex] to [tex]csc^{2} [/tex]
and get 
[tex]csc^{2}=csc^{2} [/tex]