Question

which of the following triplet are Pythagorean

Answer 1

OMG!! I am in 8th too and my book is same!!

1st and 3rd are pythagorean triplets

1) (3,4,5)

Let 2m= 4

m= 2

(2m, m2-1, m2+1)

=(4, 3, 5)

Yes it is a pythagorean triplet

2) (6,7,8)

Let 2m= 6

m=3

(2m, m2-1, m2+1)

=(6, 8, 10)

No,

3) (10,24, 26)

Let 2m= 10

m= 5

(2m, m2-1, m2+1)

= (10,24,26)

Yes