2. Show that R is a semigroup under the operation x* y = |x|y. Does it have a left or right identity element? For each
∈R , find all elements commuting with x.​

True or false look at the picture pls : /

Ineed in figuring out this problem.

(mc 02.03) what set of reflections and rotations would carry rectangle abcd onto itself? reflect over the y-axis, reflect over the x-axis, rotate 180° rotate 180°, reflect over the x-axis, reflect over the line y=x reflect over the x-axis, rotate 180°, reflect over the x-axis rotate 180, reflect over the y-axis, reflect over the line y=x