Question: a 2b a) Let V=M22 and let W = { : a, b = IR} [a-b a+b] Prove that W is a subspace of

a 2b a) Let V=M22 and let W = { : a,

a 2b a) Let V=M22 and let W = { : a, b = IR} [a-b a+b] Prove that W is a subspace of V and find its dimension. b) Prove that H= {A = M22 tr(A) = 0} is a subspace of M22 and find its dimension.

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