34. let w-{(a, 2a, 0)ja e r, w, -{(a,0,-a)]a e r. then (a) w+ wa is a subspace of r but wu w is not (b) w + wa, wu w, are both subspaces of r (c) neither w+w no

34. Let W-{(a, 2a, 0)Ja e R, W, -{(a,0,-a)]a e R. Then (A) W+ Wa is a subspace of R but Wu W is not (B) W + Wa, Wu W, are both subspaces of R (C) neither W+W nor WU W, is a subepace ofR D) Wu W is a subspace of R but W+Wg is not