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Question
Identify, with reason, if the following is a Pythagorean triplet.
(4, 9, 12)
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Solution
In the triplet (4, 9, 12),
42 = 16, 92 = 81, 122 = 144 and 16 + 81 = 97 ≠ 144
The square of the largest number is not equal to the sum of the squares of the other two numbers.
∴ (4, 9, 12) is not a pythagorean triplet.
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