Question: 5. Let S : U - V and T : V - W be linear maps. Prove that To S : U - W is

5. Let S : U - V and T : V - W be linear maps.
5. Let S : U - V and T : V - W be linear maps. Prove that To S : U - W is also linear. (Recall that To S(u) = T(S(u)).)

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