kill(all)$

van=facebook.com/LearningCalculus$

f(a,n):=a*n = (1+1/n)^(n+1);

f(y,x);

first(solve(f(y,x),y));

g(x):=rhs(first(solve(f(y,x),y)))$ g(x);

limit(g(x),x,inf);

limit(g(x),x,minf);

limit(g(x),x,0);