Why do many earthquakes and volcanoes occur along the ring of fire?

answer; a. neither end of earth's axis is tilted toward or away from the sun .is your correct answer;

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.