vipul92

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

Delete
Share
This Question is Closed

Ahaanomegas

Best Response

You've already chosen the best response.

0
\[ x + \dfrac {1}{x} = \dfrac {x^2 + 1}{x} \]You can use that. Or: You could just do it the regular way. You would do \[ \dfrac {1}{x} = \dfrac {1}{7+4\sqrt{3}} = \frac {7-4\sqrt{3}}{(7+4\sqrt{3})(7-4\sqrt{3})}. \]

vipul92

Best Response

You've already chosen the best response.

0
sry frnd but it's become too deficult

vipul92

Best Response

You've already chosen the best response.

0
so it is wrong ans.

RadEn

Best Response

You've already chosen the best response.

1
4

vipul92

Best Response

You've already chosen the best response.

0
right ans.

RadEn

Best Response

You've already chosen the best response.

1
do u know how come it ?

vipul92

Best Response

You've already chosen the best response.

0
yes

RadEn

Best Response

You've already chosen the best response.

1
hehe,, good

vipul92

Best Response

You've already chosen the best response.

0
but you looking smart person

RadEn

Best Response

You've already chosen the best response.

1
sometimes ^^

Ahaanomegas

Best Response

You've already chosen the best response.

0
Dude, you have to read everything someone writes. I didn't finish the solution. I only gave a hint.