Explain why i squared equals -1.
Algebra 2 - Tutorial for multiplying two complex numbers using foil, (7 - 2i)(-1 + 3i)
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Mathematics, Business
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11th Grade - University
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Hard
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The video tutorial explains how to multiply complex numbers using the FOIL method. It begins with an introduction to complex numbers and their operations. The instructor demonstrates the multiplication process step-by-step, combining like terms and explaining the significance of i squared. The tutorial concludes with finalizing the expression in the standard A+BI form, emphasizing the importance of writing the real component first.
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2 questions
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OPEN ENDED QUESTION
3 mins • 1 pt
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2.
OPEN ENDED QUESTION
3 mins • 1 pt
What is the final form of the complex number after combining all terms?
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