An inclined plane of length 4.5m and vertical height 1.5m is use to lift the load of 100N. what effort is required if the efficiency is 80%?​

Answer is efficiency = 50%

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.

yup its correct its: c) b b