[BWS.03] A scientist studies a model of a widely accepted theory about the universe. The model would most likely help the scientist to O understand a theory which cannot be observed
O prove that the theory would not change in the future
O demonstrate how the theory can be changed into a law
prove that all other theories about the universe are incorrect

magnitude and direction

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.

according to jean piaget, in what stage of cognitive development are children able to understand conservation task?

b. preoperational

just took it