## anonymous 3 years ago (1/|i + j|)*(i + j)

1. anonymous

$\frac{ 1 }{ i+j }*(i-j)=\frac{ i-j }{ i+j }*\frac{ i-j }{ i-j }=\frac{ (i-j)^2 }{ i^2-j^2 }$

2. anonymous

Thanks again! But for some reason the answer is incorrect, The question says: Express the vector in the form (a, b)

3. anonymous

i thought you are asking to simplify you should have said its vector lol

4. anonymous

I'm sorry, I should've been specific!

5. anonymous

it's okay but i hope you can do it now :)

6. anonymous

lol thanks, I'm trying!

7. anonymous

:)