Question 2: Decide which of the following subsets are subspaces of the given vector spaces. (a). W₁ = {(a, b) a + b = 0} R². (b). W₂ = {(a, 0, c) a, c∈ R} CR³. (c). W3 = {a+bxa = b+1} P₁(x). a b (d). W₁ = { ad-bc≠0} M2×2(R). d c b a d (e). Ws = { c |a+d=0} M2×2(R
