bmmoffattb
  • bmmoffattb
Let z=(sqrt3)-i and w=-2-2i. A. Convert Z and W to polar form. B. Calculate WZ using De Moivre's theorem. Express your answer in polar (r(cos(theta)+isin(theta))) form. C. Calculate z^2. Express your answer in rectangular (a+bi) form. D. Calculate w^4. Express your answer in polar (r(cos(theta)+isin(theta))) form.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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bmmoffattb
  • bmmoffattb
@geerky42 Think you can help a brony out?
geerky42
  • geerky42
Need help with A?
bmmoffattb
  • bmmoffattb
Actually, I finished this one. But I could use help with the next one!

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bmmoffattb
  • bmmoffattb
Find the complex fourth roots of 81(cos(3pi/8)+isin(3pi/8)) A: Find the fourth root of 81. B: Divide the angle in the problem by 4 to find the first argument. C: Use the fact that adding 2pi to the angle 3pi/8 produces the same effective angle to generate the other three possible angles for the fourth roots. Be sure that your angles lie between 0 and 2pi. D: Find all 4 of the fourth roots of 81(cos(3pi/8)+isin(3pi/8)) Express your answers in polar (r(cos(theta)+isin(theta))) form.

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