Respuestas

2012-08-19T22:43:59+02:00

Cosx = Senx

 

Cosx.Secx = 1

Cosx = 1/Secx

 

Senx.Cscx = 1/Cscx

 

1/Secx = 1/Cscx

 

Cscx = Secx (Falso)