Worksheets3.1. Imaginary Number (BR)
Total questions: 12
Worksheet time: 12mins
Name
Class
Date
1.
Simplify √-4
a)
± 2i
b)
± 2
c)
± 4
d)
± 4i
2.
What does i2 = ?
a)
1
b)
-1
c)
√-1
d)
√1
3.
Simplify.
a)
± 25i
b)
± 25
c)
± 5i
d)
± 5
4.
Simplify √-23
Hint: Try factoring 23
a)
± √23
b)
± 23i
c)
± 23
d)
± i√23
5.
Simplify √-81
a)
± √81
b)
±√81i
c)
± 9i
d)
± 81i
6.
Simplify √-45
Hint: Try factoring 45
a)
± 3i√5
b)
± 3√5i
c)
± i√45
d)
± 45i
7.
Simplify 2×√-32
Hint: Try factoring 32, and multiply by 2 at the end.
a)
± 2i√32
b)
± 4i√2
c)
± 8i√2
d)
± 16i√2
8.
Simplify
Hint: Try factoring 20.
a)
± 2 √5
b)
± 4 √5
c)
± 5 √2
d)
± 5 √4
9.
Simplify.
Hint: Try factoring 32.
a)
± 4i √2
b)
± 4 √2
c)
± 2i √8
d)
± 2 √8
10.
Simplify.
Hint: Try factoring 40.
a)
± 2i √10
b)
± 2 √10
c)
± 4i √10
d)
± 4 √10
11.
Simplify
a)
± 6
b)
± 6i
c)
± √6i
d)
± √6
12.
Simplify
a)
± 10i
b)
± 10
c)
± √10i
d)
± √10
100 %
