Question

show that the 7√11 is a irrational number​

Answer 1

Step-by-step explanation:

let 7√11 be irrational

7√11=p/q

√11=p/7q

squaring both side

√11^2=p^2/49q^2

49q^2=p^2/11

here 49q^2 is irrational

so that

irrational can't be equal to rational(irrational=rational)

our assumption was wrong

hence proved