Question

consulte a tabela trigonométrica e obtenha o valor aproximado de: a)cos11 b)tan10 c)sen40 d)cos80 e)sen80 f)cos10

Answer 1

a) $\text{cos}~11^{\circ}=0,981627$
b) $\text{tan}~10^{\circ}=0,176327$
c) $\text{sen}~40^{\circ}=0,642788$
d) $\text{cos}~80^{\circ}=0,173648$
e) $\text{sen}~80^{\circ}=0,984808$
f) $\text{cos}~10^{\circ}=0,984808$

Answer 2

cos11 = 0,9816

tg10 =   0,1763

sen40 = 0,6428

cos80 = 0,1736

sen80 = 0,9848

cos10 = 0,9848