If WWW is a subspace of VVV, what is true about the orthogonal complement W⊥W^\perpW⊥?
W∩W⊥={0}W \cap W^\perp = \{0\}W∩W⊥={0}
W⊕W⊥=VW \oplus W^\perp = VW⊕W⊥=V
(W⊥)⊥=W(W^\perp)^\perp = W(W⊥)⊥=W
All of the above