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Common Core Standard HSN-CN.A.1 Questions

Know there is a complex number i such that i2 = –1, and every complex number has the form a + bi with a and b real.

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Grade 11 Complex Numbers CCSS: HSN-CN.A.1
Simplify completely. √-200
  1. 10√2
  2. -10i√2
  3. -10√2
  4. 10i√2
Grade 11 Complex Numbers CCSS: HSN-CN.A.1
Simplify completely. √-144√4
  1. -6i
  2. 6
  3. -6
  4. 6i
Grade 11 Complex Numbers CCSS: HSN-CN.A.1
Simplify the radical. √-50
  1. 10i√2
  2. -10i√2
  3. -5i√2
  4. 5i√2
  5. can not be done
Grade 11 Complex Numbers CCSS: HSN-CN.A.1
Simplify the radical. √-9
  1. 3i
  2. -3i
  3. 9i
  4. -9i
  5. 3i√3
  6. -3i√3
Grade 11 Complex Numbers CCSS: HSN-CN.A.1
Simplify the complex number radical expression √-1600.
  1. -40
  2. 40
  3. -40i
  4. 40i
Grade 11 Complex Numbers CCSS: HSN-CN.A.1
Simplify completely. √-169
  1. -i√13
  2. -13i
  3. 13i
  4. ±13
Grade 11 Complex Numbers CCSS: HSN-CN.A.1
What is √800+√-50 ?
  1. 20√2+25i
  2. √800+50i
  3. 20√2+5i√2
  4. 25i√2
Grade 11 Complex Numbers CCSS: HSN-CN.A.1
Simplify the complex number radical expression √-96.
  1. -4i√6
  2. 4√6
  3. 4i√6
  4. -4√6
Grade 11 Complex Numbers CCSS: HSN-CN.A.1
Simplify the complex number radical expression √-75.
  1. -5√3
  2. 5√3
  3. -5i√3
  4. 5i√3
Grade 11 Complex Numbers CCSS: HSN-CN.A.1
Simplify the complex number radical expression √-1000.
  1. 10i√10
  2. -10i√10
  3. 10√10
  4. -10√10
Grade 11 Complex Numbers CCSS: HSN-CN.A.1
Simplify the complex number radical expression √-160.
  1. -4i√10
  2. -4√10
  3. 4i√10
  4. 4√10
Grade 11 Complex Numbers CCSS: HSN-CN.A.1
Simplify the complex number radical expression √-350.
  1. -5√14
  2. -5i√14
  3. 5i√14
  4. 5√14
Grade 11 Complex Numbers CCSS: HSN-CN.A.1
What is 25+√-75?
  1. 25+25i√3
  2. 25+5i√3
  3. 5+75i
  4. 5+15i
Grade 11 Complex Numbers CCSS: HSN-CN.A.1
What is √-81?
  1. 81+i
  2. 81i
  3. 9i
  4. -9i
Grade 11 Complex Numbers CCSS: HSN-CN.A.1
What is √25+√-25?
  1. 5i-5
  2. 25+5i
  3. 25i
  4. 5+5i
Grade 11 Complex Numbers CCSS: HSN-CN.A.1
What is √-4?
  1. 2i
  2. 4i
  3. 4+i
  4. 16i

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