Font size
S
M
L
XL
WorksheetsComplex Numbers
Total questions: 15
Worksheet time: 51mins
Name
Class
Date
1.
a)
10
b)
-10
c)
10i
d)
-10i
2.
(3 + 2i) + (4 - 5i)
a)
7 + 7i
b)
1 - 3i
c)
1 - 7i
d)
7 - 3i
3.
(4 - 2i) - (3 + 6i)
a)
7 - 4i
b)
1 + 4i
c)
1 - 8i
d)
7 - 8i
4.
What does i2 equal?
a)
-1
b)
√-1
c)
1
d)
-√1
5.
What letter represents an imaginary number?
a)
a
b)
i
c)
j
d)
x
6.
√-36
a)
6
b)
-6
c)
-6i
d)
6i
7.
4i(−2−8i)
(a)
8.
3+3i+8−2i−7
(a)
9.
(2−4i)(−6+4i)
(a)
10.
Which is the conjugate of (3−4i) ?
a)
(3−4i)
b)
(3+4i)
c)
(−3−4i)
d)
−i
11.
Simplify
a)
(-10+6i)/17
b)
(1+50i)/61
c)
(-23+36i)/25
d)
(-21+33i)/34
12.
a)
A
b)
B
c)
C
d)
D
13.
Simplify:
-3i(4 + 2i)
-3i(4 + 2i)
a)
6 - 12i
b)
6 + 12i
c)
-12i - 6i2
d)
-12i + 6i2
14.
Multiply
(3i)(-2+4i)
(3i)(-2+4i)
a)
-6+12i
b)
-12-6i
c)
-2+7i
d)
12+6i
15.
What is the conjugate of -2+5i?
a)
-5+2i
b)
-2-5i
c)
2+5i
d)
5-2i
Reset
