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Posted: **Thu May 12, 2022 6:44 am**

: 1 Let F R S Be A Ring Homomorphism Suppose R Is A Subring Of R Prove That F R Is A Subring Of S 1 4 Points Fin 1 (36.69 KiB) Viewed 35 times

1. Let f:R+S be a ring homomorphism. Suppose R' is a subring of R. Prove that f(R') is a subring of S. 1. (4 points) Find all the solutions to 23 – [1] = 0 in the ring Z/132. Make sure you explain why you have found all the solutions, and why there are no other solutions.