A stone is dropped from the top of a cliff which is 10-m high. What is its velocity when it hits the ground? Sketch the stones position vs time and velocity vs time graphs.

S = displacement

V = final velocity

U = initial velocity

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.

does anyone know or what?