How do you prove that #lim_(x->5)x^2!=24# using limit definition?
How do you prove that #lim_(x->5)x^2!=24# using limit definition?
How do you prove that
1 Answer
Pose
Using the reverse triangular inequality we can state that:
Consider now any
We have that for
and based on the triangular inequality:
If we choose
so that based on
So if we choose any
which contradicts the limit definition.