Hi i got problem with solving number 47

My progress: i simplify to x^2-1

Printable View

- February 5th 2013, 04:23 AMPetrusLimits
Hi i got problem with solving number 47

My progress: i simplify to x^2-1 - February 5th 2013, 04:27 AMProve ItRe: Limits
Whenever you deal with absolute values, it helps to write it as its hybrid function form...

- February 5th 2013, 04:31 AMPetrusRe: Limits
What u mean with hybrid function form?

- February 5th 2013, 04:35 AMProve ItRe: Limits
- February 5th 2013, 04:51 AMPetrusRe: Limits
lx-1l x if>_1 and -x if x<1 i cant se a point

- February 5th 2013, 06:03 AMProve ItRe: Limits
So approaching from the left (where ) your function will be . Simplify and subsitute x = 1 to find the left hand limit.

What do you think you would have to do for the right hand limit? - February 5th 2013, 06:19 AMPetrusRe: Limits
(X^2-1)/(x-1) with other words if we factor ((x-1)(x+1))/(x-1) so we got -2 from left and 2 for right? I am correct?

- February 5th 2013, 07:24 AMProve ItRe: Limits
Correct :)