The statue of liberty is made out of copper and was once shiny and copper-colored. over the years, the copper has gone through a process called oxidation, where it has changed into a new material. what has occurred? an endothermic reaction an energy formation a chemical reaction a precipitate formation

It's actually C good luck fam. <3

i'm thinking more like energy

i think it because equal matrices have equal dimensions, only square matrices can be symmetric. for all indices and . every square diagonal matrix is symmetric, since all off-diagonal elements are zero. in linear algebra, a real symmetric matrix represents a self-adjoint operator over a real inner product space.