Question

prove that 2√3-7 is irrational​

Answer 1

Step-by-step explanation:

here ,

$\sqrt{3 - 7} = \sqrt{ - 4}$

as √-4 is irrational

and also any irrational no. × any rational no. = irrational

hence

2√3-7 = 2√-4 is irrational