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IM Alg2.3.14 Lesson: More Arithmetic with Complex Numbers

Which one doesn’t belong?

A. B. C. D.

Write each power of i in the form a+bi, where a and b are real numbers. If a or b is zero, you can ignore that part of the number. For example, 0+3i can simply be expressed as 3i.

What is ? Explain your reasoning.

What is ? Explain your reasoning.

Write each power of 1+i in the form a+bi, where a and b are real numbers. If a or b is zero, you can ignore that part of the number. For example, 0+3i can simply be expressed as 3i.

Compare and contrast the powers of  with the powers of . What is the same? What is different?

For each row, your partner and you will each rewrite an expression so it has the form a+bi, where a and b are real numbers. You and your partner should get the same answer. If you disagree, work to reach agreement.