Question: (a) (5 marks) Suppose that y : R 10 -+ Po and th : Pg -> M25 (R) are injective linear transformations. Prove that the

(a) (5 marks) Suppose that y : R 10 -+ Po and th : Pg -> M25 (R) are injective linear transformations. Prove that the composition who is an isomorphism. (b) (5marks) Suppose that y : M; (R) - R" and y : R -> P, are linear transformations such that the composition who y is surjective. Prove that

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