My compitations: Base Case= $8-3 = 5$ is divisible by $5$ Inductive Hypothesis$=$ $8^k - 3^k = 5M$ $8^k = 5M + 3^k$ $3^k = 8^k - 5M$
My final answer is $5(11M + 11^k)$ Please tell me if I have any mistake regarding my computations.
I have injection $f \colon A \rightarrow B$ and I want to get bijection. Can I just resting codomain to $f(A)$? I know that every function i...
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