Question
If f is continuous and int _(0)^4f(x)dx=10 find int _(0)^2f(2x)dx
Solution
4.6
(269 Votos)
Gabrielle
Mestre · Tutor por 5 anos
Resposta
To find the value of \(\int_{0}^{2} f(2x) \, dx\), we can use a substitution method. Let's set
. Then,
, which implies
.Now, we need to change the limits of integration accordingly. When
,
. When
,
.Substituting these into the integral, we get:
Since \(\int_{0}^{4} f(x) \, dx = 10\), we can write:
Therefore, the value of \(\int_{0}^{2} f(2x) \, dx\) is
.