Adding and Subtracting Complex Numbers

Front

What is the result of -6i - 2i?

Back

-8i

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CCSS.HSN.CN.A.2

Front

What does i² equal?

Back

-1

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CCSS.HSN.CN.A.1

Front

What is the product of (-2i) • (5i)?

Back

10

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CCSS.HSN.CN.A.2

Front

What is the simplified form of 5i?

Back

±5i

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CCSS.HSN.CN.A.1

Front

What is the product of 4i • 5i?

Back

-20

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CCSS.HSN.CN.A.2

Front

Define a complex number.

Back

A complex number is a number that can be expressed in the form a + bi, where a and b are real numbers and i is the imaginary unit.

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CCSS.HSN.CN.A.1

Front

What is the imaginary unit 'i'?

Back

The imaginary unit 'i' is defined as the square root of -1.

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CCSS.HSN.CN.A.1

Front

How do you add complex numbers?

Back

To add complex numbers, combine their real parts and their imaginary parts separately.

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CCSS.7.NS.A.1C

Front

How do you subtract complex numbers?

Back

To subtract complex numbers, subtract their real parts and their imaginary parts separately.

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CCSS.HSN.CN.A.2

Front

What is the result of (3 + 4i) + (1 + 2i)?

Back

4 + 6i

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CCSS.HSN.CN.A.2