if x+1/x = 3^1/2 then x^3 - 1/x^3 = ??

thanks :)

Printable View

- Jan 30th 2011, 12:09 PMdisharmonieneed help in exponent problem
if x+1/x = 3^1/2 then x^3 - 1/x^3 = ??

thanks :) - Jan 30th 2011, 12:40 PMrtblue

note that 3^(1/2)=sqrt(3).

Surely, you can take it from here. - Jan 30th 2011, 12:43 PMmr fantastic
- Jan 30th 2011, 07:59 PMSoroban
Hello, disharmonie!

I got a rather silly answer . . . or is it silly?

Quote:

. .

. .

. . . . . . . . . . . . .

. . . . . . . . . . . . .

. . . . . . . . . . . . .