Подстановка условия
[src]acos(Abs(cos(x))) при x = 1
$$\operatorname{acos}{\left (\left|{\cos{\left (x \right )}}\right| \right )}$$
$$\operatorname{acos}{\left (\left|{\cos{\left ((1) \right )}}\right| \right )}$$
$$\operatorname{acos}{\left (\left|{\cos{\left (1 \right )}}\right| \right )}$$
$$\operatorname{acos}{\left (\cos{\left (1 \right )} \right )}$$