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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.

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Grade 11 Complex Numbers CCSS: HSN-CN.A.3
Multiply [math]5-12i[/math] by its conjugate.
  1. [math]169i[/math]
  2. [math]169[/math]
  3. [math]25+34i+144i^2[/math]
  4. [math]203i^3[/math]
Grade 11 Complex Numbers CCSS: HSN-CN.A.3
Multiply [math]1-1i[/math] by its conjugate.
  1. [math]1i[/math]
  2. [math]1[/math]
  3. [math]2[/math]
  4. [math]2i[/math]
Grade 11 Complex Numbers CCSS: HSN-CN.A.3
Multiply [math]2-10i[/math] by its conjugate.
  1. [math]24[/math]
  2. [math]102i[/math]
  3. [math]104[/math]
  4. [math]4-24i+100i^2[/math]
Grade 11 Complex Numbers CCSS: HSN-CN.A.3
Multiply [math]6+5i[/math] by its conjugate.
  1. [math]61[/math]
  2. [math]61i[/math]
  3. [math]36+22i+25i^2[/math]
  4. [math]82i^3[/math]
Grade 11 Complex Numbers CCSS: HSN-CN.A.3
Multiply [math]4+6i[/math] by its conjugate.
  1. [math]16+12i+36i^2[/math]
  2. [math]52i[/math]
  3. [math]52[/math]
  4. [math]16+36i[/math]

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