Complex Number Operations

Front

Simplify: (4 + 7i) - (3 + 2i)

Back

1 + 5i

Tags

CCSS.HSN.CN.A.2

Front

Multiply: (5)(2i)

Back

10i

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CCSS.HSN.CN.A.2

Front

Simplify: (10 + 15i) - (48 - 30i)

Back

-38 + 45i

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CCSS.HSN.CN.A.2

Front

Multiply: (6i)(-2i)

Back

12

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CCSS.HSN.CN.A.2

Front

Multiply: (4 – 3i)(-7 – 2i)

Back

-34 + 13i

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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

What is the conjugate of a complex number a + bi?

Back

The conjugate of a complex number a + bi is a - bi.

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CCSS.HSN.CN.A.3

Front

How do you add complex numbers?

Back

To add complex numbers, add 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