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Question: problen 33 let f be a field a 13 points...

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Problen 3.3 Let F be a field (a) 13 points) IIF has characteristic p, show that the Frobenius map φ : F → F Kiven by (a)a, is a ring h )R3 points) Show that ф is a bijection if F is a finite field. hism Fwhich (c) /4 pointa) Given an example of a field F and a ring homomorphismF is injective but not surjective, and justify your answer

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