Find the limit, if it exists. (If an answer does not exist, enter DNE.)

Question

Find the limit, if it exists. (If an answer does not exist, enter DNE.)

lim x→0− 9/x-9/x)

 

Answer 1

9/x-9/x always equals zero except at x = 0(where it is undefined), so what would the limit be? Remember that for your limit, you're plugging in negative numbers extremely close to 0, but not equal to 0.