Question

simplifique as expressões
a)y= sen x.cossec x -1
_________________
tg x

b) y=tg x + cotg x
______________
sec x

Answer 1

B) seno/cosseno+ coss/sen ------------------------------------- 1/coss Sen2+coss2/sen.coss/1/coss Sen2+coss2: 1 1/sen.coss/1/coss Y : 1/seno A ) senx.1/senx -1/ sen/coss Acho q dá 0 Lembrando que : sec : 1/ coss Cossec : 1/sen Tang : sen/coss Cotg : coss/ sen Acertei ? Abraço !