Which of the following is not a Pythagorean triplet?
40, 76, 86
24, 32, 40
30, 40, 50
9, 40, 41
It can be seen that: 502 = 2500 = 900 + 1600 = 302 + 402 412 = 1681 = 1600 + 81 = 402 + 92 402 = 1600 = 1024 + 576 = 322 + 242 862 = 7396 ≠ 402 + 762