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1. Prove that 5° -1 is divisible by 4 for all natural numbers, n, using Mathematical Induction. a) Verify that it is true for n =1. b) Assuming that it

is true for "n =k , you get that 5* -1 is divisible by 4. Use the following to show that it's true for "=k +1. Fill-in the blanks!

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