Calculate the recoil velocity of the 4 kg rifle after firing a bullet with mass o 0.010 kg.

divide the right side by the left side

0.024÷1.2=0.02 for example

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.

what is the actual question though?