Question

If x=3+2underroute 2 check whether x+1/x is irrational or rational

Answer 1

We have, x = 3+2√2

So, 1/x = 1/(3+2√2)= 3–2√2

Hence, x+1/x = (3+2√2)+(3–2√2)=6 which is a rational number.