Question

F(x)=(x+3)/(x^2-9), at a=-3,0,3. What do the points at a mean, and how do i find the left and right hand limits of the actual limit (-3)

Answer 1

it is actually not defined on the points on 3, -3 as it will give denom 0 so we take limits to its approx value

Answer 2

so 2.9 and 3.1 and -2.9 and -3.1?

Answer 3

no.. that would be tending to 3 and -3 like 2.99999999999999999999999999999999999999999999999999....... till infinite

Answer 4

so what do i do to find the left and right hand limits, since the limit exists

Answer 5

yaa

Answer 6

please help

Answer 7

factorize the denom as (x+3)(x-3) and x+3 will vanish out and now you can find the values..

Answer 8

thank you <3

Answer 9

no prob..