Question

prove that 3-4root 7 is irrational​

Answer 1

Step-by-step explanation:

a rational number can be written in the form of p/q

let's check weather given question can be written in p/q form.....

given: 3-4√7

√7= 2.6

so, 3-4(2.6)

= 3-10.5

= -7.5

here we got -7.5 ......but, rational numbers can't be in negative form....

so, 3-4√7 is irrational...