How do we take mod | | , of something ?
Please answer this for the following questions :
1. |xy|
2. | (x^2-y2) / (x^2+y^2) |

Question

anonymous · Answer

|x| is always greater than 0 (zero). So according to definition, if an entity inside a mod is negative, it becomes positive. And if its already positive then mod deosn't affect that

anonymous · Answer

your questions dont look complete.

unklerhaukus · Answer

in this case the modulus is the absolute value
ie the magnitude (regardless of sign)

anonymous · Answer

PS mod is always greater than or equal to 0

anonymous · Answer

And magnitude is always positive. So, its one and the same thing. right?

anonymous · Answer

Iam talking about magnitude ! So it would amount to some distance which is represented by under root of something. But Iam not able to recollect. Please help

unklerhaukus · Answer

I dont understand this question what are we trying to do with $$ |xy|$$?
solve for y?

anonymous · Answer

no , evaluating |xy|

unklerhaukus · Answer

do you have values for x and y?