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30-07-2020
Mathematics

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Select the correct answer. Write (21 − 4i) − (16 + 7i) + 28i as a complex number in standard form. A. 5 + 39i B. 5 + 17i C. 5 − 39i D. 5 − 17i

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12-08-2020

Answer:

b. 5 + 17i

Step-by-step explanation:

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