1. Prove that if f and g are injective functions, then f o g is also injective. 2. Check if f and f o g are injective functions, then g is also an injective function.
Added by Mary W.
Step 1
To prove that f o g is injective, we need to show that for any two distinct elements x and y in the domain of g, their images under f o g are also distinct. Let's assume that f and g are injective functions. This means that for any two distinct elements a and b Show more…
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