4.Which of the following is a Pythagorean triplet?
(1 Point)
2n, (n2 – 1) and (n2 + 1)
(n – 1), (n2 – 1) and (n2 + 1)
(n + 1), (n2 – 1) and (n2 + 1)
(n2 - 1) and (n2 + 1)
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are (3, 4, 5), (6, 8,10), (5, 12, 13), (9, 12, 15), (8, 15, 17), (12, 16, 20), (15, 20, 25), (7, 24, 25), (10, 24, 26), (20, 21, 29), (18, 24, 30), (16, 30, 34), (21, 28, 35), ... (OEIS A046083, A046084, and A009000).
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