# Lesson Worksheet: Complex Number Conjugates Mathematics

In this worksheet, we will practice using the properties of conjugate numbers to evaluate an expression.

Q1:

Find the complex conjugate of and the sum of this number with its complex conjugate.

• A,
• B,
• C, 0
• D,

Q2:

What is the conjugate of the complex number ?

• A
• B
• C
• D
• E

Q3:

What is the conjugate of the complex number ?

• A
• B
• C
• D
• E

Q4:

How do you find the conjugate of a complex number?

• AChange the sign of both the real and imaginary parts.
• BSwap the real and imaginary parts.
• CChange the sign of its imaginary part.
• DSwap the real and imaginary parts, then change the sign of them both.
• EChange the sign of its real part.

Q5:

Is the complex conjugate of the number ?

• ANo
• BYes

Q6:

If ,what is ?

• A
• B
• C
• D
• E8

Q7:

Is the complex conjugate of the number ?

• ANo
• BYes

Q8:

Is the sum of a number and its complex conjugate always a real number?

• AYes
• BNo

Q9:

Is the product of a number and its complex conjugate always a real number?

• AYes
• BNo

Q10:

If is a real number, what will its conjugate be equal to?

• A
• B
• C
• D

This lesson includes 20 additional questions and 81 additional question variations for subscribers.

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