Soru
Evaluate the limits. lim _(xarrow 6^-)(x-6)/(vert x-4vert )= lim _(xarrow 6^+)(x-6)/(vert x-4vert )= Does lim _(xarrow 6)(x-6)/(vert x-4vert ) exist?
Çözüm
4.6
(226 Oylar)
Kerime
Profesyonel · 6 yıl öğretmeni
Uzman doğrulaması
Cevap
To evaluate the given limits, we need to consider the behavior of the function as
approaches
from both the left and the right.1.
When
approaches
from the left, the numerator
is negative, and the denominator
is positive. Therefore, the fraction is negative.As
gets closer to
, the numerator approaches
, and the denominator approaches
. So, the limit is:
2.
When
approaches
from the right, the numerator
is positive, and the denominator
is positive. Therefore, the fraction is positive.As
gets closer to
, the numerator approaches
, and the denominator approaches
. So, the limit is:
3. Does
exist?For the limit to exist, the left-hand limit and the right-hand limit must be equal. However, we have:
Since the left-hand limit and the right-hand limit are not equal, the limit
does not exist.