Question

Cotgx + senx/1+cosx = cscx
Alguien???

Answer 1

${cotx+ \frac{senx}{1+cosx} =}\\\\{\frac{cosx}{senx}+\frac{senx}{1+cosx}=}\\\\{ \frac{cosx(1+cosx)+senx(senx)}{senx(1+cosx)} =}\\\\{ \frac{cosx+cos^2x+sen^2x}{senx(1+cosx)} =}\\\\{ \frac{cosx+1}{senx(1+cosx)}=} \\\\{ \frac{1+cosx}{senx(1+cosx)}=}\\\\{ \frac{1}{senx}=}\\\\{\boxed{cscx}}\\\\{\text{salu2.!! :)}}$