Parts of Complex Numbers

• 6 + 8i

• 2 + 15i

• -2 + 8i

• 6 - 2i

Which of the following is a correct representation of a Complex Number?

• a + bi

• ab

• a - b

• a x b

How do you subtract 3 + 4i from 7 +2i ?

• 4 + 6i

• 4 - 2i

• 10 + 6i

• 10 - 2i

A complex number can be expressed as a + bi. What does a represent?

• the real part of the complex number

• the imaginary part of the complex number

• depends on the sign of the number

• the square root of the complex number

Refer to the above image, what is the conjugate of the denominator?

• 8 + 6i

• 6 + 8i

• 6 - 8i

• -6 +8i

An imaginary number is also part of which of the following set of numbers?

• Real

• Whole

• Irrational

• Complex

• Rational

A complex number has a real and an ________ part.

What is the results of dividing 6 + 2i by 3 + i ?

• 2 + i

• 2 - i

• 1 + 2i

• 2

Which of the following expressions represents the conjugate of 5 + 6i ?

• -5 + 6i

• 5 - 6i

• -5 - 6i

• 6 + 5i

• 13

• 16

• 7

• 25