Mathematics
Senior High
Resolved
積分です。
dx、dtの意味も教えてください
(3) √x 2 +2 =t とおくと
x2=t2-2,
xdx=tdt
√2
よって Sox+2
466
=S
x
0
√2
t√2
x3
dx
68nia
t2-2
.tdt
+0
√2 t
-S-2-
= S² (t² - 2) dt
||
[
t3
3
-2t
2
12
=
4 (√2-1)
3
AS
→2
2
2
xdx tác
2
↓どうやって?
Answers
Were you able to resolve your confusion?
Users viewing this question
are also looking at these questions 😉
