Share/Like This Page
Browse Questions

Common Core Standard HSN-CN.A.3 Questions

(+) Find the conjugate of a complex number; use conjugates to find moduli and quotients of complex numbers.

You can create printable tests and worksheets from these questions on Common Core standard HSN-CN.A.3! Select one or more questions using the checkboxes above each question. Then click the add selected questions to a test button before moving to another page.

Previous Page 1 of 3 Next
Grade 11 Complex Numbers CCSS: HSN-CN.A.3
What is the complex conjugate of -7+15i?
  1. -7-15i
  2. -7+15i
  3. 7-15i
  4. 7+15i
Grade 11 Complex Numbers CCSS: HSN-CN.A.3
Multiply -i by its conjugate.
  1. -1
  2. 1
  3. 1-i
  4. No conjugate exists
Grade 11 Complex Numbers CCSS: HSN-CN.A.3
Divide. 4i12i
  1. 13
  2. -13i
  3. -13
  4. 1-13i
Grade 11 Complex Numbers CCSS: HSN-CN.A.3
Divide. 6-4i-5+5i
Grade 11 Complex Numbers CCSS: HSN-CN.A.3
Divide and simplify the following complex number expression. -5-9i9+8i
  1. -117145+41145i
  2. -117145-41145i
  3. 117145+41145i
  4. 117145-41145i
Grade 11 Complex Numbers CCSS: HSN-CN.A.3
What is the complex conjugate of 3+4i?
  1. -3-4i
  2. -3+4i
  3. 4i+3
  4. 3-4i
Grade 11 Complex Numbers CCSS: HSN-CN.A.3
Evaluate. 36i
  1. 12i
  2. 1+12i
  3. -12
  4. -12i
Grade 11 Complex Numbers CCSS: HSN-CN.A.3
Divide the complex numbers. 8-8i2-2i
  1. Undefined
  2. 0
  3. 4
  4. 4-4i
Grade 11 Complex Numbers CCSS: HSN-CN.A.3
What is the modulus of -4+7i?
  1. 65
  2. √65
  3. 33
  4. -3
Grade 11 Complex Numbers CCSS: HSN-CN.A.3
Evaluate. 9-3i-6-3i
  1. 0
  2. -1+i
  3. 1-i
  4. -53+53i
Grade 11 Complex Numbers CCSS: HSN-CN.A.3
Given z=8-2i, find |z|.
  1. 2√17
  2. 2√15
  3. 68
  4. 60
Grade 11 Complex Numbers CCSS: HSN-CN.A.3
Evaluate. 4i7-3i
  1. 2029i
  2. -310+710i
  3. 17-43i
  4. -629+1429i
Grade 11 Complex Numbers CCSS: HSN-CN.A.3
What is the complex conjugate of -250+81i?
  1. -250-81i
  2. 250-81i
  3. -250+81i
  4. 250+81i
Grade 11 Complex Numbers CCSS: HSN-CN.A.3
If z is a complex number, and |z|=5, which of the following are possible values of z? Choose all correct answers.
  1. z=4+i
  2. z=3-4i
  3. z=10-5i
  4. z=4+3i
Grade 11 Complex Numbers CCSS: HSN-CN.A.3
Divide. -10+3i2-8i
  1. 1115+3730i
  2. -1117-3734i
  3. -5-38i
  4. 117-3734i
Grade 11 Complex Numbers CCSS: HSN-CN.A.3
Find the modulus of -3i.
  1. -3
  2. √3
  3. √-3
  4. 3
Grade 11 Complex Numbers CCSS: HSN-CN.A.3
Divide the complex numbers. -13+i4+4i
  1. Undefined
  2. -134+14i
  3. -32+74i
  4. -74+74i
Grade 11 Complex Numbers CCSS: HSN-CN.A.3
Which of the following are possible values of z, a complex number, if |z|=√13? Choose all correct answers.
  1. z=2-3i
  2. z=-3-2i
  3. z=2+3i
  4. z=2√3+i
Grade 11 Complex Numbers CCSS: HSN-CN.A.3
Divide. 5-2i-3+4i
Previous Page 1 of 3 Next

Become a Pro subscriber to access Common Core questions

Unlimited premium printables Unlimited online testing Unlimited custom tests

Learn More About Benefits and Options