Question

(IBMEC-SP) (Cos (π/1), Cos (π/2), Cos (π/3), Cos (π/4),...,Cos(π/n), Cos(
π/2008))
Possui X termos maiores do que 0,6, portanto X é igual a:
a)2008
b)2005
c)2003
d)6
e)3

Answer 1

Ola Helena

cos(π/n) > 0.6 

n > 3.38791

n = 4

x = 2008 - 4 + 1 = 2005 termos (B)

.