Question

sabendo que cosx=24/25 e 0<x<pi/2, calcule senx/4, cosx/4 e tgx/4

Answer 1

Boa tarde Jordana

cos(x) = 24/25 

x = acos(24/25) = 16°26 

sen(x/4) = sen(16.26/4) = 0.0708881
cos(x/4) = cos(16.26/4) = 0.99748427
tg(x/4) = tg(16.26/4) = 0.0710669