WorksheetsUnit 2 review
Total questions: 10
Worksheet time: 32mins
Name
Class
Date
1.
√-36
a)
6
b)
-6
c)
-6i
d)
6i
2.
Simplify √-48
a)
4i
b)
-4√3
c)
4i√3
d)
12i
3.
i15
a)
1
b)
-1
c)
i
d)
−i
4.
i106
a)
1
b)
-1
c)
i
d)
−i
5.
Find the sum.
(5-2i) + (-7+8i)
(5-2i) + (-7+8i)
a)
-2+6i
b)
12+6i
c)
-35-16i2
d)
-35 -16i
6.
Simplify:
(10+ 15i) - (48 - 30i)
(10+ 15i) - (48 - 30i)
a)
58 - 45i
b)
58 - 15i
c)
-38 - 15i
d)
-38 + 45i
7.
(3+8i)(-2-i)
a)
2-19i
b)
23-i
c)
34+5i
d)
23-i
8.
The expression (2 + 3i)2 is equal to
a)
-5
b)
-5 + 12i
c)
13
d)
13 + 12i
9.
Solve the following quadratic equation:
x2+5x=6
a)
x=2 & x=3
b)
x =−1 & x=6
c)
x=1 & x=−6
d)
x=−2 & x=−3
10.
Solve x2 - 5x + 10 = 0
a)
(5 - i√15)/2 , (5 + i√15)/2
b)
(5 - √15)/2 , (5 + √15)/2
c)
(5 - i√65)/2 , (5 + i√65)/2
d)
(5 - √65)/2 , (5 + √65)/2
100 %
