Question

If x is equal to under root 3 + 2 then find the value of x + 1/x

Answer 1

Answer:

4

Step-by-step explanation:

x=√3+2

1/x=1/√3+2

x+1/x

=(√3+2)+(1/√3+2)

=[{(√3)²+2x√3x2+4}+1/(√3+2)]

=[(3+4√3+4+1)/(√3+2)]

=[(4√3+8)+(√3+2)]

=4[(√3+2)/(√3+2)]

=4