1.
=lim(x->∞)exp[x/(x^2-1)]=exp[lim(x->∞)x/(x^2-1)]=exp(0)=1
2.
=lim(x->1)[(3-x)-(1+x)]/{(x^2-1)[(√3-x)+(√1+x)]}=-2/[4√2]=-√2/4
1.
=lim(x->∞)exp[x/(x^2-1)]=exp[lim(x->∞)x/(x^2-1)]=exp(0)=1
2.
=lim(x->1)[(3-x)-(1+x)]/{(x^2-1)[(√3-x)+(√1+x)]}=-2/[4√2]=-√2/4