
Calculus: Early Transcendentals
8th Edition
ISBN: 9781285741550
Author: James Stewart
Publisher: Cengage Learning
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![If f is continuous on [0, π], use the substitution u = - x to show that
[²x₁
/0
So we have,
π
[²x₁
xf(sin(x)) dx =
π
2 ["x
10
[T
10
---Select--- V When x = π, u = 0, and when x = 0, u =---Select---
Let u = π - x. Then du =
Use U-substitution to replace the values in the integral.
'0
["xf(sin(x)) dx = [ (ir - () (sin( [
L)
(π
Jπ
π
2
xf(sin(x)) dx = π
- ["(x - 1)r (sin( [
=
(π
f(sin(x)) dx.
Recall the identity that sin(π - u) = sin(u) and make the appropriate substitution and continue the proof.
["x²{(sin(x)) dx = ["(x - u)r (sin(
(π
)) du
-x [ "r(sin(us) on - ["ur(sin( [
=
du
= x (" (sin(x)) dx - (²xr(sin( [
x f(sin(x)) dx = π
--6²
7. STF (
f(sin(x)) dx
"π
= = ["r (sin( [
10
"π
- [² x r( sin ( [
(- du)
1)) a
dx
du
→
)) au
dx
介
])) dx =](https://content.bartleby.com/qna-images/question/2591a617-d371-4e84-973d-c14327503dd0/9847b654-26fa-42b6-8c6d-9bdc6ae7c43d/oe45vll_thumbnail.png)
Transcribed Image Text:If f is continuous on [0, π], use the substitution u = - x to show that
[²x₁
/0
So we have,
π
[²x₁
xf(sin(x)) dx =
π
2 ["x
10
[T
10
---Select--- V When x = π, u = 0, and when x = 0, u =---Select---
Let u = π - x. Then du =
Use U-substitution to replace the values in the integral.
'0
["xf(sin(x)) dx = [ (ir - () (sin( [
L)
(π
Jπ
π
2
xf(sin(x)) dx = π
- ["(x - 1)r (sin( [
=
(π
f(sin(x)) dx.
Recall the identity that sin(π - u) = sin(u) and make the appropriate substitution and continue the proof.
["x²{(sin(x)) dx = ["(x - u)r (sin(
(π
)) du
-x [ "r(sin(us) on - ["ur(sin( [
=
du
= x (" (sin(x)) dx - (²xr(sin( [
x f(sin(x)) dx = π
--6²
7. STF (
f(sin(x)) dx
"π
= = ["r (sin( [
10
"π
- [² x r( sin ( [
(- du)
1)) a
dx
du
→
)) au
dx
介
])) dx =
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