Question

Examine the following sets of the numbers for the pythagorean triplets.
(a) 7,8,9. (b)(5,12,13)

Answer 1

a. (7)2+(8)2=(9)2
49+64=81
113no equal to81
(b. (5)2+(12)2=(13)2
25+144=169
169=169
these no. are

Answer 2

by Pythagorean
the square of greater side is equal to the the sum squares of other two sides
now see
a) 7, 8, 9
greater side=9
9^2=81
other sides are 7&8
7^2+8^2=49+64
=113
81 is not equal to113 so it is not a Pythagorean triplet
b) 5, 12, 13
greater side=13
13^2=169
12^2+5^2=25+144
=169
so it is Pythagorean triplet