Question

proof that 2-7√3 is irrational​

Answer 1

Answer:

it's very simple first you take 2-7√3=5√3 and ans is 8.6602540378443 so it's not reapiting and not terminating so it is a rational number

Answer 2

Step-by-step explanation:

let 2-7√3 be rational

2-7√3= a/b ( a and b are coptime)

-7√3= a/b-2

-7√3= a-2b/b

-√3= a-2b/7b

√3=. a-2b/-7b

⬇️=. ⬇️

irrational. rational

hence 2-7√3 is irrational

hope it helps you

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