Let s,t ele R and f1,f2 : (s,t) -> R. Take a ele (s,t) and suppose lim x->a- f1(x) and lim x-> a- f2(x) exist and equal L1 and L2 respectively.
Suppose L1=-inf and L2=inf. Then , does the limit L = lim x->a- f1(x) + f2(x) exist? Explain your idea briefly.
Thanks