$$\log{\left (\operatorname{acos}{\left (3 \right )} \right )} \operatorname{acos}^{x}{\left (3 \right )}$$
x 2
acos (3)*log (acos(3))
$$\log^{2}{\left (\operatorname{acos}{\left (3 \right )} \right )} \operatorname{acos}^{x}{\left (3 \right )}$$
x 3
acos (3)*log (acos(3))
$$\log^{3}{\left (\operatorname{acos}{\left (3 \right )} \right )} \operatorname{acos}^{x}{\left (3 \right )}$$