Question

is 5,7,9 a Pythagorean triplets ? why ? justify​

Answer 1

Answer:

no

Step-by-step explanation:

Let us take

(5^2)+(7^2)=9^2

25+49=74 which is not equal to 81

Answer 2

Hey mate ,

A group of 3 numbers are called Pythagorean Triplets only if the sum of square of 2 smaller number is equal to the square of largest number .

In 5,7,9

${9}^{2} = {5}^{2} + {7}^{2}$

$81 = 25 + 49$

$81 = 81$

Thus , L.H.S. = R.H.S.

Hence Proved .

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