工程與科技
大學
請問這題積分可以用ln 解嗎
但答案好像會不一樣（正確是拍/2）～～謝謝🙏
X
e
tex dx
Item
fe
Definition of improper integrals
EXAMPLE 4
Infinite Upper
Evaluate
∞
ex
1 + e²x
ell
dx.
25.8
14
Solution Note that the integrand is
Figure 8.241076 mil
x
ze
{ Soite
He
store mil
dx + 1
1
- {/2 dn 1 + ½ / ln
2
y
Joo
xx dx
Evalua
1/2 lite²
- { la lite" ^ | |-+ ½ lm (14 257) Exha
Soluti
integral
D
x
2
Def
EXA
ole
°Hex
a
解答
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我認為這樣沒辦法用ln