True / False. Be sure to explain your answers. Recall that a B means that"a is in the set B".

True / False. Be sure to explain your answers. Recall that a ∈ B means that”a is in the set B”. Assume that ~x, ~y, ~z are vectors in R3

If (vector)x ∈ Span((vector)y, (vector)z), then (vector)y must be in Span((vector)x, (vecttor)z).

This is the question. I believe the answer is false but I don't know which rules I would use to explain my answers