Question

State whether $(14,48,50)$ is Pythagorean triplet or not.Why?
[2 marks]

Answer 1

We know that, $2m$, <!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> $m^2$ + 1, <!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> $m^2$ - 1 make Pythagorean triplets.
[0.5 mark]

Put, $2m=14\Rightarrow m=7$.
[0.5 mark]

$m^2$ - 1 = $7^2$ - 1 = $49-1=48$
[0.5 mark]

$m^2$ + 1 = $7^2$ + 1 = $49+1=50$.
[0.5 mark]

Hence, $(14,48,50)$ is a Pythagorean triplet.