Adding and Subtracting Test

Unit Test #35

Select your answers to the following 5 questions from the pop-up menus in the right hand column. Clicking the "Begin Test Again" button will clear all the answers.

 

 

Q1:

 

 What is the conjugate of the complex number (3 - 4i)

A. 9 + 16i

B. 3 + 4i

C. 4 - 3i

D. -3 + 4i
Answer 1:

 

Q2:

 

 What is the imaginary part of the complex number (5 - 6i)?

A. 5

B. i

C. -6

D. -6i
Answer 2:

 

Q3:

 

 Calculate (3 + 4i) + (4 - 3i)

A. 7 + 7i

B. -1 + 7i

C. 7 + i

D. 7 - i

 
Answer 3:

 

Q4:

 

 Calculate (3 + 4i) - (4 - 3i)

A. 1 + 7i

B. -1 + 7i

C. 7 + 7i

D. 7 - i
Answer 4:

 

Q5:

 

If z = 2 - 3i what is -2z

A. -4 + 3i

B. 4 + 6i

C. -4 - 6i

D.-4 + 6i
Answer 5: