If the difference of two variables is finite, can you assume that each of the variables themselves are finite??
for instance, if x - y < infinity, can you assume that both x and y are finite?
thanks for the help!
If the difference of two variables is finite, can you assume that each of the variables themselves are finite??
for instance, if x - y < infinity, can you assume that both x and y are finite?
thanks for the help!
You've an undefined form $\displaystyle \infty-\infty$, what you can say is:
$\displaystyle \infty-a=\infty$ where $\displaystyle a\in \mathbb{R}$
$\displaystyle a-\infty=-\infty$ where $\displaystyle a\in \mathbb{R}$
If two variables are finite then their difference is finite.