Tutorial - How do we multiply complex numbers

The video tutorial introduces complex numbers, explaining their form as a + bi. It covers the multiplication of complex numbers using the FOIL method and emphasizes the importance of the imaginary unit 'i', which represents the square root of -1. The tutorial explains that i squared equals -1, a crucial concept in complex number multiplication. The video concludes with a summary of these key points.

What is the standard form of a complex number?

• a + bi

• a - bi

• a * bi

• a / bi

Which method is used to multiply two complex numbers?

• Partial fractions

• Long division

• Cross multiplication

• FOIL method

What does the imaginary unit 'i' represent?

• Square root of 0

• Square root of 1

• Square root of -1

• Square root of 2

What is the value of i squared?

• 2

• 1

• 0

• -1

When applying the distributive property to complex numbers, what should you remember about i squared?

• It equals 2

• It equals 1

• It equals 0

• It equals -1