Respuestas

2012-09-15T04:08:29+02:00

secx - cotx * 1/cscx=1/cosx-(cosx/senx)/(1/senx)

=1/cosx-cosx=(1-cosx^2)/cosx=senx^2/cosx=senx*(senx/cosx)=senxtgx

2012-09-15T04:13:53+02:00

1/cosx-1/tanx*1/senx

senxcosx-cos^2x/cosxsenx*1/senx

cosx(senx-cosx)/cosxsen^2x

1/senx-cosx/sen^2x

cscx-ctgx/senx