Question

prove that 5-7√3 is an irrational no​

Answer 1

let it be rational no so it is in the form of p/q  

5+7√3=p/q

7√3=p/q-5

√3=1/7(p/q-5)  

since LHS is irrational and RHS is rational so our contradiction is wrong hence 5+7√3 is irrational.

Answer 2

Answer been pinned here

hope this Answer helps uh...

@Rajula Ravalika

: )