Question
Asked Jan 25, 2019
1790 views

Prove that the fourth power of any integer has one of the forms 5k or
5k + 1, where k is an integer.

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Expert Answer

Step 1

We need to prove that any integer has one of the forms 5k or 5k + 1, where k is an integer.

Let p be an integer, any integer n can be written as,

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Step 2

Consider first case,

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Step 3

Consider next...

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Advanced Math

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