Question

prove that 7√2 is irrational​

Answer 1

√2 is irrational and we know that the product of rational and irrational numbers is is always irrational therefore 7 sqft2 is irrational

you can also check it by solving as :h

7*√2

7*1.414_ _ _ _

which gives a number which never ends or repeat themselves hence 7√2 is irrational