Operations with Complex Numbers: Addition, Subtraction, Multiplication, and Division

What is a complex number composed of?

• Only a real part

• Neither real nor imaginary part

• A real part and an imaginary part

• Only an imaginary part

What is the standard form of a complex number?

• a / bi

• a + bi

• a - bi

• a * bi

What does the imaginary unit 'i' represent?

• Square root of 1

• Square root of 2

• Square root of 0

• Square root of -1

What is the result of i squared (i^2)?

• -1

• 0

• i

• 1

How do you add the complex numbers 3 + 2i and 4 - 5i?

• 7 - 3i

• 7 + 3i

• -1 + 7i

• -1 - 7i

What is the result of subtracting 4 - 5i from 3 + 2i?

• -1 - 7i

• -1 + 7i

• 1 + 3i

• 1 - 3i

When multiplying (3 + 2i) and (4 - 5i), what is the result?

• 20 - 7i

• 20 + 7i

• 20 - 3i

• 20 + 3i

What is the first step in dividing complex numbers?

• Subtract the denominators

• Divide the real parts

• Multiply by the complex conjugate

• Add the numerators

What is the result of dividing 3 + 2i by 4 - 5i?

• 23/41 + 2/41i

• 23/41 - 2/41i

• 2/41 - 23/41i

• 2/41 + 23/41i

How do you handle a monomial in the denominator when dividing complex numbers?

• Multiply by the numerator

• Subtract the imaginary part

• Multiply by i over i

• Add the real part