Understanding and applying conjugates of complex numbers

• A
• B
• C
• D

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CCSS.HSN.CN.A.3

Simplify the expression.

 $\sqrt{\frac{-6}{-25}}$  

•  $\frac{i\sqrt{6}}{25}$  

•  $\frac{i\sqrt{6}}{5}$  

•  $\frac{\sqrt{6}}{5}$  

•  $\frac{6i}{5}$  

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CCSS.HSN.CN.A.3

Divide
 $\frac{3i}{2+i}$  

•  $\frac{3-9i}{5}$ 

•  $\frac{3+6i}{5}$  

•  $\frac{-3+6i}{5}$ 

•  $\frac{3+6i}{2}$ 

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CCSS.HSN.CN.A.3

Simplify

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CCSS.HSN.CN.A.3

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CCSS.HSN.CN.A.3

• 3i

• -3i

• 3

• -3

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CCSS.HSN.CN.A.3

Simplify the following expression

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CCSS.HSN.CN.A.3

• A
• B
• C
• D

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CCSS.HSN.CN.A.3

 $\frac{8+10i}{4+8i}$  Divide this complex number equation.

•  $\frac{7}{5}-\frac{3}{10}i$  

•  $\frac{2}{9}-\frac{7}{11}i$  

•  $\frac{5}{11}-\frac{4}{5}i$  

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CCSS.HSN.CN.A.3

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CCSS.HSN.CN.A.3