Resposta :
[tex]\frac{cos4x+2tg(\frac{x}{2}-sen2x}{cotgx*cossecx+sec8x}[/tex]
[tex]\frac{cos(2\pi)+2tg(\frac{\pi}{4})-sen(\pi)}{cotg(\frac{\pi}{2})*cossec(\frac{\pi}{2})+sec(4\pi)}[/tex]
[tex]\frac{(1)+2(1)-(0)}{(0)*(0)+(1)}[/tex]
[tex]\frac{3}{1}[/tex]
[tex]3[/tex]