Question

Prove that : 2√3 - 1 is an irrational.​

Answer 1

Answer:

Let 2√3-1 be a rational number.

A rational number can be written in the form of p/q where p,q are integers.

2√3-1=p/q

2√3=p/q+1

2√3=(p+q)/q

√3=(p+q)/2q

p,q are integers then (p+q)/2q is a rational number.

Then,√3 is also a rational number.

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Answer 2

Step-by-step explanation:

by this process you can prove that 2root under 3 -1 is irrational