Question

5. Use Euclid's division lemma to show that the cube of any positive integer is of the form
9m, 9 m + 1 or 9m+8.
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Answer 1

Step-by-step explanation:

a = 9m + 1 [ Where m = 3q³ + 3q² + q ) . Therefore, the cube of any positive integer is of the form 9m, 9m + 1, or 9m + 8. Hence, it is proved .