Algebra 2 Learn how to simplify an expression by rationalizing denominator with complex numbers -7/i

The video tutorial covers basic arithmetic operations, focusing on division. It introduces the concept of imaginary numbers, particularly the imaginary unit 'i', and explains how to handle division involving imaginary numbers. The tutorial demonstrates the process of simplifying expressions with imaginary numbers in the denominator by multiplying the numerator and denominator by 'i'. The final result is a simplified expression without 'i' in the denominator.

Which of the following operations is NOT mentioned in the introduction?

• Multiplication

• Exponentiation

• Subtraction

• Addition

What is the result of dividing 3 into 12?

• 3

• 4

• 5

• 6

What does the imaginary unit 'i' represent?

• The square root of 2

• The square root of 0

• The square root of -1

• The square root of 1

Why do we multiply the numerator and denominator by 'i' when dividing by 'i'?

• To add 'i' to both parts

• To eliminate 'i' from the numerator

• To eliminate 'i' from the denominator

• To make the expression more complex

What is the final result when simplifying -7i divided by i^2?

• 7

• 7i

• -7

• -7i