Identify the equation used to calculate the gravitational force (Fc) acting on a block on an inclined plane. A) F=mg
B) F=mg sin
C) F=mg cos
D)F=mg tan

answer: i pick a

explanation:

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.