The answer to the question: "the number of times the sun will rise in two years " will be measured in
a. tens
b. hundreds
c. ones
d. thousands

car stops. he keeps going = he has inertia

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.