Question

prove that 5-2√3 is irrational
number​

Answer 1

hence proved

hope it helps you

Answer 2

Answer:

let 5-2root3) be rational

(5-2root3) ıs rational and 5 is rational

{5-2root3)-5) ıs rational

=-2root3 is rational

=(-1/2)(-2root3) ıs rational

root 3 is rational

this contradict the fact root 3 is irrational

hence (5-3root 3) ıs irrational