Soru
Given e>0 find an interval I=(5,5+delta ),delta gt 0 such that if x lies in I, then sqrt [4](x-5)lt e What limit is being verified and what is its value? If x lies in the interval I=(5,5+8) then sqrt [4](x-5)lt e when 0lt delta lt square (Type an expression using eas the variable )
Çözüm
4.2
(240 Oylar)
Gülcan
Elit · 8 yıl öğretmeni
Uzman doğrulaması
Cevap
The value of
must be less than
, so
.
Daha Fazla
## Step 1The problem is asking us to find an interval \(I=(5,5+\delta)\), where
, such that if
lies in
, then
. This is a limit problem, and we are verifying the limit of the function \(f(x) = \sqrt[4]{x-5}\) as
approaches 5.## Step 2The limit we are verifying is
. We need to find a value for
such that for all
in the interval \(I=(5,5+\delta)\), the inequality
holds.## Step 3To find the value of
, we need to solve the inequality
. This can be done by raising both sides of the inequality to the power of 4, which gives us \(x-5 < e^).## Step 4Solving for
, we get
. This means that the interval
must be less than
.## Step 5Therefore, the value of
must be less than
, which simplifies to
.