Question

if x=3+2square root, check wheather1+1/x is rational or irrational​

Answer 1

Answer:

x +1/x is rational.

Step-by-step explanation:

x = 3+2√2

.1/x = 3-2√2 ( After rationalising the denominator of 1/ 3+2√2)

x + 1/x = 3+2√2+3-2√2 = 6

Hence , x+1/x is rational