Question

Решить уравнение: tg(6arccos4x)=0

Answer 1

tg(6arccos4x)=0
6arccos4x=π
arccos4x=π/6
4x=cosπ/6
4x=√3/2
x=√3/8

Answer 2

$tg(6arccos4x)=0 \ 6arccos4x= pi n \ arccos4x= frac{ pi n }{6} \ cos(arccos4x)=cosfrac{ pi n }{6} \ 4x=cosfrac{ pi n }{6} \ x= frac{1}{4} cosfrac{ pi n }{6}$
n,∈Z