Complex Numbers Review

Front

Multiply: (4 – 3i)(-7 – 2i)

Back

-34 + 13i

Front

Simplify: (-3i)(4i)(-5i)

Back

-60i

Front

Multiply: (2i)(3i)

Back

-6

Front

Simplify: (10 + 15i) - (48 - 30i)

Back

-38 + 45i

Front

What is the complex conjugate of 4 - 3i?

Back

4 + 3i

Front

Define a complex number.

Back

A complex number is a number that can be expressed in the form a + bi, where a and b are real numbers and i is the imaginary unit.

Front

What is the imaginary unit i?

Back

The imaginary unit i is defined as the square root of -1.

Front

What is the real part of a complex number?

Back

The real part of a complex number a + bi is the value a.

Front

What is the imaginary part of a complex number?

Back

The imaginary part of a complex number a + bi is the value b.

Front

How do you add complex numbers?

Back

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