Which statement is true about the cell theory? A. It is tested only once.
B. It is based on a random guess.
C. It is based on experimentation.
D. It is a claim posed by some scientists.

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.

heat the gas and measure the pressure