Kristyn travels to the mall at an average speed of 28.0 km/h The mall is located 8.00 km from Kristyn's home. How long in hours does it take Kristyn to travel from her home to the mall?

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.