Complex Numbers Add Subtract Divide

Another way to express √-1 is?

• 1

• -1

• i

• 0

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CCSS.HSN.CN.A.1

A complex number can be expressed as a + bi. What does a represent?

• the real part of the complex number

• the imaginary part of the complex number

• depends on the sign of the number

• the square root of the complex number

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CCSS.HSN.CN.A.1

If you are adding two complex numbers you should

• add all the numbers together then divide by 2

• add only the real numbers and subtract the complex numbers

• add only the complex numbers and subtract the real numbers

• add only the real numbers together and then add only the complex numbers together then stop

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CCSS.HSN.CN.A.2

Simplify.

• -5i

• 5

• 5i

• -5

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CCSS.HSN.CN.A.2

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CCSS.HSN.CN.A.2

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CCSS.HSN.CN.A.2

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CCSS.HSN.CN.A.2

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CCSS.HSN.CN.A.2

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CCSS.HSN.CN.A.2