1.
Simplify
i
1300
.
A.
–
i
B.
1
C.
0
D.
i
Hint
2.
Simplify the expression (5 – 2
i
) – (2 – 7
i
).
A.
7 + 5
i
B.
3 + 5
i
C.
3 – 9
i
D.
7 – 9
i
Hint
3.
What is the conjugate of –9 – 2
i
?
A.
–9 + 2
i
B.
2 + 9
i
C.
9
D.
2 – 9
i
Hint
4.
What is the complex conjugate of
a
-
bi
, if
a
and
b
are real numbers?
A.
a
+
b
i
B.
a
-
b
i
C.
a
2
+
b
2
-
ab
i
D.
Hint
5.
Evaluate
i
4
n
+2
, where
n
is a positive integer.
A.
1
B.
i
C.
-
i
D.
-1
Hint