Question: Explain why any integer can be written in the form4k or4k + 1 0r4k + 2 or: + 3, where [2] k E Z. Hence

Explain why any integer can be written in the form4k or4k

Explain why any integer can be written in the form4k or4k + 1 0r4k + 2 or\": + 3, where [2] k E Z. Hence prove that the square of any integer can be written in the form4t or4t + 1, [B] where t E 2+

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