Question

Is 5,7,9 a Pythagorean triplet?Why?Justify.

Answer 1

Hye

We should verify whether 5,7 and 9 is a pythogorean triplet

Usual formula is a square + b square c squar

But for verifying let us another formula

Here 5 is the smallest odd number. .so it is=>a square =b + c

5 square =7+9

25 is not euqal to 16

So it is not a pythogorean triplet

Answer 2

Hi...

here is your answer:

Pythagorean triplet:

(5)^2 + (7)^2 should be equal to (9)^2

Let,
(5)^2 + (7)^2 = LHS

25 +35 = 60

and let, (9)^2 = 81

LHS ≠ RHS

According to Pythagorean triplet, when the square of two smaller no. is added then they should be equal to square of another big no.

here,

(5)^2 + (7)^2 ≠ (9)^2


Hope u like my answer :-)