Question: Let and g be one-to-one functions. Prove that (a) g is one-to-one. (b) ( g) - (x) = (g -

Let ƒ and g be one-to-one functions. Prove that

(a) ƒ º g is one-to-one.

(b) (ƒ º g)-¹ (x) = (g-¹ º ƒ-¹)(x).

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