Exploring Operations With Complex Numbers

What is the value of the imaginary unit 'i'?

• The square root of 1

• The square root of -1

• The square root of 0

• The square root of 2

Tags

CCSS.HSN.CN.A.1

In the expression 3 + 2i, which part is the real number?

• None of the above

• i

• 2i

• 3

Tags

CCSS.HSN.CN.A.2

When adding complex numbers, what should you combine?

• Both real and imaginary parts separately

• Only the imaginary parts

• None of the above

• Only the real parts

Tags

CCSS.HSN.CN.A.2

What is the result of (3 + 2i) + (4 - 5i)?

• 7 - 3i

• 1 + 3i

• 7 + 3i

• 1 - 3i

Tags

CCSS.HSN.CN.A.2

What is the result of (3 + 2i) - (4 - 5i)?

• -1 - 7i

• -1 + 3i

• -1 + 7i

• -1 - 3i

Tags

CCSS.HSN.CN.A.2

What is the first step in multiplying (3 + 2i) and (4 - 5i)?

• Add the real parts

• Subtract the imaginary parts

• Combine like terms

• Draw a box and fill in the terms

Tags

CCSS.HSN.CN.A.1

What is the value of i squared?

• 1

• i

• -1

• 0

Tags

CCSS.HSN.CN.A.2

What is the result of (3 + 2i) * (4 - 5i)?

• 22 + 7i

• 22 - 7i

• 38 + 16i

• 38 - 16i

Tags

CCSS.HSN.CN.A.2

What should you do if you want extra credit on the homework?

• Complete the green section without showing work

• Complete only the green section

• Complete the green section and show all work

• Complete more than the green section and show all work

Tags

CCSS.RI.6.3

CCSS.RI.8.3

CCSS.RI.8.5

CCSS.RI.9-10.3

CCSS.RI.9-10.5

What is the teacher's main requirement for giving extra credit?

• Completing the green section

• Showing all work

• Asking for help

• Using a program to solve problems