## anonymous 3 years ago x=sqrt(7+4sqrt3) then (x+(1/x))=?

1. anonymous

$x + \dfrac {1}{x} = \dfrac {x^2 + 1}{x}$You can use that. Or: You could just do it the regular way. You would do $\dfrac {1}{x} = \dfrac {1}{7+4\sqrt{3}} = \frac {7-4\sqrt{3}}{(7+4\sqrt{3})(7-4\sqrt{3})}.$

2. anonymous

sry frnd but it's become too deficult

3. anonymous

so it is wrong ans.

4

5. anonymous

right ans.

do u know how come it ?

7. anonymous

yes

hehe,, good

9. anonymous

but you looking smart person

sometimes ^^

11. anonymous

Dude, you have to read everything someone writes. I didn't finish the solution. I only gave a hint.