New Zealand
Level 8 - NCEA Level 3

# Multiplication of Numbers in Polar Form

## Interactive practice questions

a

Which is true?

When multiplying two complex numbers in trigonometric form, we add their absolute values and add their arguments.

A

When multiplying two complex numbers in trigonometric form, we multiply their absolute values and add their arguments.

B

When multiplying two complex numbers in trigonometric form, we add their absolute values and multiply their arguments.

C

When multiplying two complex numbers in trigonometric form, we multiply their absolute values and multiply their arguments.

D

When multiplying two complex numbers in trigonometric form, we add their absolute values and add their arguments.

A

When multiplying two complex numbers in trigonometric form, we multiply their absolute values and add their arguments.

B

When multiplying two complex numbers in trigonometric form, we add their absolute values and multiply their arguments.

C

When multiplying two complex numbers in trigonometric form, we multiply their absolute values and multiply their arguments.

D
b

Which is true?

When dividing two complex numbers in trigonometric form, we subtract their absolute values and divide their arguments.

A

When dividing two complex numbers in trigonometric form, we subtract their absolute values and subtract their arguments.

B

When dividing two complex numbers in trigonometric form, we divide their absolute values and divide their arguments.

C

When dividing two complex numbers in trigonometric form, we divide their absolute values and subtract their arguments.

D

When dividing two complex numbers in trigonometric form, we subtract their absolute values and divide their arguments.

A

When dividing two complex numbers in trigonometric form, we subtract their absolute values and subtract their arguments.

B

When dividing two complex numbers in trigonometric form, we divide their absolute values and divide their arguments.

C

When dividing two complex numbers in trigonometric form, we divide their absolute values and subtract their arguments.

D
Easy
Approx a minute

### Outcomes

#### M8-9

Manipulate complex numbers and present them graphically

#### 91577

Apply the algebra of complex numbers in solving problems