Homework Statement
2. Find the limit.
lim
x->0
for
1-sqrt(x^2-1)
---------------
x^2
Homework Equations
No clue, that's why I am asking.
The Attempt at a Solution
I inverted the signs and multiplied by sqrt(x^1+1)+1
So:
sqrt(x^2+1)-1 sqrt(x^2+1)+1...