Question

lim x -> 1 x^2 - 1/x-1

Answer 1

x->?

Answer 2

sorry x -> 1

Answer 3

\[\lim_{x \rightarrow 1}\frac{(x-1)(x+1)}{x-1}=\lim_{x \rightarrow 1}x+1=2\]

Answer 4

(x-1)(x+1)/(x-1)
cancel the common bracket and put x =1
it will be (x+1)=(1+1)=2

Answer 5

Use the L'Hopital by finding derivatives till you get a solution.

Answer 6

when do we factorize any limit ??

Answer 7

are there some rules for limits, if anyone can provide .. I will appreciate.