Question

[/tex]cos(p-х)=sinp/2

 

Answer 1

$cos( pi -x) = sin frac{ pi }{2}$
$cos( pi -x) = 1$
$pi -x = 2 pi n, n in Z$
$x = pi - 2 pi n, n in Z$
Ответ: $pi - 2 pi n, n in Z$