Question

limit as x approaches -infinity
x / (x - (sqrt. x^2 + 7))

Answer 1

How many ways can u stack 77 books into equal pile?

Answer 2

i don't know? how does this help

Answer 3

\[\lim_{x\rightarrow \infty} \frac{x}{x- \sqrt{x^2+7}}= \lim_{x\rightarrow \infty} \frac{x}{x}\cdot \frac{1}{1-\sqrt{1+7/x^2}} \] does that help?

Answer 4

that does. but then you'd get 1/0
that DNE

Answer 5

DNE is not the answer

Answer 6

I'm afraid the limit does not exist.

Answer 7

Unless you refer to the limit as negative infinity.