Question

Can someone explain why this expression involving infinity equals one?

http://www.wolframalpha.com/input/?i=%28i*5x%29%2F%281%2Bi5*x%29+at+x+%3D+infinity

Answer 1

devide every term by i5x and then evaluate the limit:\[\lim_{x \rightarrow \infty}(i5x/i5x)/(1/i5x +i5x/i5x ) = \lim_{x \rightarrow \infty}1/(1/i5x +1) =1\]