Tutorial - Combining complex numbers ex 2, (9 + 8i) + (9 - 9i)

The video tutorial explains the process of adding complex numbers by focusing on combining real and imaginary components separately. It emphasizes the importance of combining like terms, where real numbers are added together and imaginary numbers are combined separately. The tutorial concludes with a summary of the key points discussed.

What is the first step when adding complex numbers?

• Add the real parts and imaginary parts separately

• Multiply the real parts by the imaginary parts

• Subtract the imaginary parts from the real parts

• Add the real and imaginary parts together

In the example given, what is the result of adding the real parts 9 + 9?

• 0

• 18

• 81

• 9

What is the result of combining the imaginary parts 8i - 9i?

• -i

• 1i

• 17i

• 0i

Why is it important to combine like terms when adding complex numbers?

• To simplify the expression

• To make the numbers larger

• To change the numbers to real numbers

• To eliminate the imaginary part

What is the final result of combining the real and imaginary parts in the example?

• 18

• 18 - i

• 18 + i

• 18i