Prof. Israel N Nwaguru
MATH 1316
CHAPTER 4 - REVIEW
Multiple Choice
Identify the choice that best completes the statement or answers the question.
1. Write the complex number
A)
B)
C)
in standard form.
D)
E)
2. Write the complex number in standard form.
A)
B)
C)
D)
E)
3. Simplify and write the following complex number in standard form.
A)
B)
4. Simplify
A)
C)
D)
E)
and write the answer in standard form.
B)
5. Simplify
A)
C)
D)
E)
and write the answer in standard form.
B)
C)
D)
E)
6. Simplify and write the following complex number in standard form.
A)
B)
7. Simplify
A)
C)
D)
E)
and write the answer in standard form.
B) 0
C)
D)
E)
8. Write the complex conjugate of the complex number
A)
B)
C)
D)
.
E)
9. Write the expression below as a complex number in standard form.
A) –5
B) 1– 5i
10. Simplify
A)
C) 5
D) 5i
E) –5i
and write the answer in standard form.
B)
C)
D)
E)
11. Simplify
A)
and write the answer in standard form.
B)
C)
D)
12. Combine
E)
and write the answer in standard form.
A)
B)
C)
D)
E)
13. Simplify:
A) 0 B) –1
C) i
D) –i
E) 1
14. Evaluate the power of i.
A) 0
B)
C)
D)
E)
15. Solve the equation and write complex solutions in standard form.
A)
E)
B)
16. Plot the complex number
C)
.
D)
A)
B)
C)
D)
E)
17. Find the absolute value of the complex number
A)
B) 149 C)
D)
E)
18. Find the trigonometric form of
A)
.
B)
D)
19. Find the trigonometric form of
.
C)
E)
.
A)
B)
D)
C)
E)
20. Multiply the complex numbers. Write the answer in trigonometric form.
A) 56 cis
B) 56 cis
C) 56 cis
D) 15 cis
E) 15 cis
21. Multiply the complex numbers below and leave the result in trigonometric form.
A)
B)
D)
E)
C)
22. Divide the complex numbers below and leave the result in trigonometric form.
A)
B)
D)
E)
C)
23. Divide the complex numbers below and leave the result in trigonometric form.
A)
D)
B)
C)
E)
Prof. Israel N Nwaguru
REVIEW
Answer Section
MULTIPLE CHOICE
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
23.
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
E
B
E
B
D
D
D
E
D
C
C
C
D
D
A
B
A
D
E
A
A
B
E
MATH 1316
CHAPTER 4 -