Question

If x = 3+2×√2, then value of x+1/x = ?

Answer 1

Answer:6

Step-by-step explanation:

x=3+2 root 2

1/x = 1 /(3+2 root 2)

Rationaling the denominator, we get

1/x = (3-2root2)/((3+2root2)(3-2root2))

1/x = 3-2root2/(9-8)

Therefore, 1/x =3-2root2

x+1/x=3+2root2 + 3-2root2

=6

Answer 2

Answer:

Step-by-step explanation:

3+2√2+3-2√2=6