The method begins in the usual way: once the secondary (or middle) image has been located, use the line of sight method to determine how light reflects off the second face of the mirror to the eye.
(the secondary (or middle) image; use; the line of sight method; to determine how light reflects off the second face of the mirror to the eye) (the secondary (or middle) image; has been located; T:once) Context(the secondary ( or middle ) image has been located,List([41, 89))):(The method; begins; )
the secondary ( or middle ) image has been located,List([41, 89))
the secondary (or middle) image the secondary (or middle) image The method
use has been located begins
the line of sight method to determine how light reflects off the second face of the mirror to the eye
T:once