Question

x=sqrt(7+4sqrt3)
then (x+(1/x))=?

Answer 1

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

Answer 2

sry frnd but it's become too deficult

Answer 3

so it is wrong ans.

Answer 4

4

Answer 5

right ans.

Answer 6

do u know how come it ?

Answer 7

yes

Answer 8

hehe,, good

Answer 9

but you looking smart person

Answer 10

sometimes ^^

Answer 11

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