Practice Page
Directions: The following questions pertain to the imaginary "i".

1.
Which of the following is equivalent to "-i "?
sm1
Choose:
 
i 46
i 47
i 48
i 49



2.
Which choice is equivalent to i 233 ?
sm2
Choose:
 
1
-1
i
-i



3.
Which choice is equivalent to 2i 2 + 3i 3 ?
sm8
Choose:
 
-2 - 3i
2 - 3i
  -2 + 3i 2 + 3i



4.
Simplify: i 8 + i 9 + i 10 + i 11
sm4
Choose:
 
1
-1
i
0



5.
Simplify: i 99 - i 3
sm3
Choose:
 
1
 i 99
-i
0


 

6.
What is the value of (5i3 )3 ?
sm5
Choose:
 
-125i
125i
-15i
15i



7.
Simplify: i 7 • i 3
sm7
Choose:
 
1
-1
i
-i



8.
Simplify: ioveri
sm6
Choose:
 
1
-1
i
-i



9.
The expression 3i(2i 2 - 5i) is equivalent to
sm9
Choose:
 
15 - 6i
 15 - 5i
15 - 5i
-1+ 0i



10.
Express 6xi3 + 2yi4 + 4xi + 5yi8 in simplest a + bi form.
sm1
Choose:
 
3y + 10xi
10xi + 7yi
 
7y - 2xi
7y - 10xi



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