# Something to do with surds?

• July 10th 2011, 06:07 AM
gurparwaan
Something to do with surds?
x=√2+√2-√2+x value of x
• July 10th 2011, 07:22 AM
kalyanram
Re: urgent
Hi Gurparwaan,

Firstly you are in the wrong forum. Try posting it in the algebra forum. And before you post it there show your attempt at the problem and where you find it difficult to solve.
• July 10th 2011, 07:39 AM
e^(i*pi)
Re: urgent
It is clear that $x = \sqrt{2} + x$ has no solution
• July 10th 2011, 09:10 AM
Opalg
Re: Something to do with surds?
Quote:

Originally Posted by gurparwaan
x=√2+√2-√2+x value of x

Please state this problem more carefully. I suspect that you may mean something like x=√{2+√[2-√(2+x)]}, or $x = \sqrt{2+\sqrt{2-\sqrt{2+x}}}.$ Even then, the problem does not make much sense unless the – sign in the middle of that expression should be a +.
• July 11th 2011, 11:33 AM
gurparwaan
Re: Something to do with surds?
yeah but in the book its given this only what u had said Opalg.......and ans is in terms of 2cos20/2cos40/2cos80.2cos10