Question
lim _(xarrow 0)(sqrt [4](x^4+1)-sqrt (x^2+1))/(x^2)
Solution
3.5
(107 Votos)
Aurora
Elite · Tutor por 8 anos
Resposta
To evaluate the limit
, we can use L'Hôpital's Rule since it is in an indeterminate form
.First, let's rewrite the expression:
We need to apply L'Hôpital's Rule, which states that if \(\lim_{x \to c} \frac{f(x)}{g(x)}\) results in
or
, then:
First, we find the derivatives of the numerator and the denominator.The numerator is
.Let
and
.Then, the derivatives are:
Now, applying L'Hôpital's Rule:
Simplify the expression:
As
:
Therefore, the limit is: