Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Mathematics
Mathematics
Problem
To begin evaluating the integral
∫
x
ln
(
x
2
+
4
)
d
x
\displaystyle \int x\,\ln\bigl(x^{2}+4\bigr)\,dx
∫
x
ln
(
x
2
+
4
)
d
x
, which substitution for
u
u
u
is most likely to simplify the integrand for subsequent work? a)
u
=
x
2
+
4
u = x^{2}+4
u
=
x
2
+
4
b)
u
=
x
2
u = x^{2}
u
=
x
2
c)
u
=
ln
(
x
2
+
4
)
u = \ln\bigl(x^{2}+4\bigr)
u
=
ln
(
x
2
+
4
)
d)
u
=
x
u = x
u
=
x
Browse the problem library