Find `x^3+y^3` when `x=1/(3-2sqrt(2))andy=1/(3+2sqrt(2)).`

if x=(1)/(3-2sqrt(2)),y=(1)/(3+2sqrt(2)) find (a)x^(2)+y^(2)(b)x^(3)+y^(3)

If x=(1)/(sqrt(3)-sqrt(2)) find x+(1)/(x)

Find the angle between the lines y=(2-sqrt(3))(x+5)andy=(2+sqrt(3))(x-7)

If x=2sqrt(3)+2sqrt(2), find (1)/(x)

If (sqrt(1+x^(2))+sqrt(1-x^(2)))/(sqrt(1+x^(2))-sqrt(1-x^(2)))=3 then x=1)sqrt((2)/(3)2)sqrt((1)/(3))3)sqrt((2)/(5))sqrt((3)/(5))

Find the angle between the straight lines : y-(2+sqrt(3))x=6andy=(2-sqrt(3))x+9