1.
Find
.
A.
B.
C.
D.
Hint
2.
Find the principal square root of 2
i
.
A.
1 -
i
B.
-1 -
i
C.
-1 +
i
D.
1 +
i
Hint
3.
Find (1 +
i
)
-6
.
A.
B.
C.
D.
Hint
4.
Find the principal fourth root of 256
i
. Leave the result in polar form.
A.
B.
4 (cos 0 +
i
sin 0)
C.
D.
4
Hint
5.
Which of the following is not a cube root of -3 + 3
i
?
A.
0.42 - 1.56
i
B.
-1.56 + 0.42
i
C.
-1.14 - 1.14
i
D.
1.14 +1.14
i
Hint