Complex Numbers: Definitions + Simple Ops (Add, Subtract, Mult)

Front

What letter represents an imaginary number?

Back

i

Front

Back

-1

Front

What is the definition of a complex number?

Back

Front

What is the imaginary unit defined as?

Back

Front

How do you add two complex numbers?

Back

To add two complex numbers, add their real parts and their imaginary parts separately.

Front

How do you subtract two complex numbers?

Back

To subtract two complex numbers, subtract their real parts and their imaginary parts separately.

Front

What is the product of two imaginary numbers, (3i)(5i)?

Back

-15

Front

What is the result of (4 - 2i) - (3 + 6i)?

Back

1 - 8i

Front

What is the conjugate of a complex number a + bi?

Back

The conjugate is a - bi.

Front

How do you multiply a complex number by its conjugate?

Back