kill(all)$

van=facebook.com/LearningCalculus$

f(c, x,y,z,t):=((x^t+y^t+z^t)/(c))^(1/t);

limit(f(3, x,y,z,t),t,0);

create_list(limit(f(i, x,y,z,t),t,0),i,1,30);