An arthroscope can be inserted into a knee joint through a very tiny incision to a doctor examine the knee. a light is transmitted through the scope to illuminate the joint.
what type of light technology is being described?

Sample Response: The technology being described is fiber optics. Since they are small and flexible, they enable doctors to see areas that they might otherwise be unable to see without surgery.

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.

answer///scientific method;