math/calculus
posted by angie on .
lim as x>+1
x^3 1/x^2 1
lim as x>1
x^3 1/x^2 1
lim as x>1
x^3 1/x^2 1

x^3  1 = (x1)(x^2 + x + 1)
x^2  1 = (x1)(x+1)
as x>1, you get (1+1+1)/(1+1) = 3/2
As x > 1 you get 1/0, + or  depending on the direction.