Recent content by leoxy520

sorry, i corrected it, does anyone have the explanation for this proof ?

Suppose that limx->c f(x) = infinity and limx->c g(x)=l where l is a real number. Prove the following. limx->c[f(x)+g(x)]= infinity limx->c[f(x)g(x)]= infinity if l > 0 limx->c[f(x)g(x)]= -infinity if l < 0 I have the proof for these already, but I couldn't understand them, would someone please...