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Write the Pythagorean triplet whose one of the numbers is 4.

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प्रश्न

Write the Pythagorean triplet whose one of the numbers is 4.

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उत्तर

For any natural number greater than 1, (2m, m2 – 1, m2 + 1) is Pythagorean triplets.

So, if one number is 2m, then another two numbers will be m2 – 1 and m2 + 1.

Given, one number = 4

Then Pythagorean triplets:

2m = 4 or m = 2

So, m2 – 1 = (2)2 – 1 = 4 – 1 = 3

m2 + 1 = (2)2 + 1 = 4 + 1 = 5

Now, (3)2 + (4)2 = (5)2

⇒ 9 + 16 = 25

⇒ 25 = 25

Therefore, Pythagorean triplets are 3, 4 and 5.

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अध्याय 3: Square-Square Root and Cube-Cube Root - Exercise [पृष्ठ ९३]

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एनसीईआरटी एक्झांप्लर Mathematics Exemplar [English] Class 8
अध्याय 3 Square-Square Root and Cube-Cube Root
Exercise | Q 95. | पृष्ठ ९३

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