Question

If (9, x − 1, x ) is a Pythagorean triplet, then find the Pythagorean triplet.

Options are;
A. (9,11,10)

B. (9,40, 41)

C. (9,35, 36)

D. (9,39, 41)​

Answer 1

Hello,

Answer B

Explanation:

If (9, x − 1, x ) is a Pythagorean triplet then
9²+(x-1)²=x²

81+x²-2x+1=x²

82=2x

x=41

x-1=40

(9,40,41) is the right triplet : answer B