Question: b. Show that U = {(1:,y,2:)|:1: 2y 2 = 0} is a subspace of R3. (4 marks) (3. Show that U = {3:2 232' +1,

b. Show that U = {(1:,y,2:)|:1: 2y 2 = 0} is a subspace of R3. (4 marks) (3. Show that U = {3:2 232' +1, 4:c2 13:17 4, 23::2 + 33: + 2} is not a basis of P2. (2 marks)

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