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which of the following are correct check all that...
Question: which of the following are correct check all that...
Question details
Which of the following are correct? ( Check all that apply)
Ā
a.Ā
The Laurent series representation of the functionĀ
š
(
š§
)
=
1
š§
ā
2
$f(z)=\frac{1}{z\u0101\x88\x922}$
Ā in the annulusĀ
{

š§
ā
2

>
0
}
$\{z\u0101\x88\x922>0\}$
Ā isĀ Ā
ā
ā
š
=
1
2
š
ā
1
1
(
š§
ā
2
)
š
b.Ā
The Laurent series representation of the functionĀ
š
(
š§
)
=
1
š§
ā
š
$f(z)=\frac{1}{z\u0101\x88\x92i}$
Ā in the annulusĀ
{

š§

>
1
}
$\{z>1\}$
Ā isĀ Ā
ā
ā
š
=
1
š
š
ā
1
1
š§
š
c.Ā
The Laurent series representation of the functionĀ
š
(
š§
)
=
1
š§
+
1
$f(z)=\frac{1}{z+1}$
Ā in the annulusĀ
{

š§

>
1
}
$\{z>1\}$
Ā isĀ Ā
ā
ā
š
=
1
(
ā
1
)
š
ā
1
1
(
š§
+
1
)
š
d.Ā
The Taylor series representation of the functionĀ
š
(
š§
)
=
1
š§
+
1
$f(z)=\frac{1}{z+1}$
Ā in the diskĀ
{

š§

<
1
}
$\{z<1\}$
Ā isĀ Ā
ā
ā
š
=
0
(
ā
1
)
š
š§
š
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