## suju101 3 years ago lim x-->4^- |x|/x and lim x-->0^- |x|/x

1. satellite73

what does the ^ mean?

2. satellite73

oh never mind i got it. limit from the right and left

3. satellite73

first one is $\frac{4}{4}=1$

4. satellite73

second one is $\frac{-x}{x}=-1$

5. satellite73

because you are taking the limit as x goes to zero from below, which means that x is negative, which makes |x| = -x