Complex Numbers

What are the two distinct parts of a complex number?

• Real and imaginary parts

• Whole and fractional parts

• Positive and negative parts

• Integer and decimal parts

When multiplying complex numbers, what method can be used?

• FOIL method

• Long division

• Cross multiplication

• Partial fraction decomposition

What is the value of i squared in complex numbers?

• i

• 0

• -1

• 1

On a complex plane, what does the Y-axis represent?

• Whole numbers

• Rational numbers

• Real numbers

• Imaginary numbers

How is subtraction of complex numbers represented graphically?

• By moving in the opposite direction of the subtrahend

• By reflecting the vector over the X-axis

• By moving in the same direction as the subtrahend

• By rotating the vector 90 degrees

What is the conjugate of a complex number A + Bi?

• -A - Bi

• -A + Bi

• A + Bi

• A - Bi

What happens when a complex number is multiplied by its conjugate?

• The result is zero

• The result is the real part squared

• The result is the magnitude squared

• The result is twice the imaginary part