Is this right?

**Joel** · June 3rd 2009, 03:27 AM

Hi Guys,

Given this question and I think I have it correct but it just doesn't look right.

Have I done something wrong?

Cheers

Expand ( x + ⅟x )² = x² + 2x⅟x + ⅟x₂
= x² + 2 + ⅟x₂

**Rapha** · June 3rd 2009, 03:30 AM

Hey!

Originally Posted by Joel

Hi Guys,

Given this question and I think I have it correct but it just doesn't look right.

Have I done something wrong?

Cheers

Expand ( x + ⅟x )² = x² + 2x⅟x + ⅟x₂
= x² + 2 + ⅟x₂

$(x + \frac{1}{x})^2 = x^2+2*x*\frac{1}{x}+(\frac{1}{x})^2$

$=x^2+2+\frac{1}{x^2}$

Yes, you are right!

Cheers
Rapha

**Moo** · June 3rd 2009, 03:31 AM

Hello,

Originally Posted by Joel

Hi Guys,

Given this question and I think I have it correct but it just doesn't look right.

Have I done something wrong?

Cheers

Expand ( x + ⅟x )² = x² + 2x⅟x + ⅟x₂
= x² + 2 + ⅟x₂

No, it's correct

**Joel** · June 3rd 2009, 03:33 AM

Just didn't look right for some reason. The text that you reply in... is that from a special program, as it makes math symbols just so clear, rather than in word
??? thanks heaps

**Prove It** · June 3rd 2009, 03:34 AM

Originally Posted by Joel

Just didn't look right for some reason. The text that you reply in... is that from a special program, as it makes math symbols just so clear, rather than in word
??? thanks heaps

It's a mathematics compiling language known as LaTeX.

If you want to learn how to use it, there is a LaTeX help sub-forum on this site.

Thread: Is this right?

LinkBack

Thread Tools

Display

Is this right?