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March 5, 2015

March 5, 2015

Posted by **Kerry** on Monday, September 23, 2013 at 10:06pm.

a) find α and β in the form re^iθ, giving the values of r and θ

b) Using de Moivre's Theorem, show that α^3=β^3.

c) find the exact value of αβ*+α*β

- Pure Mathematics -
**Steve**, Tuesday, September 24, 2013 at 4:03amz = (-2±√-12)/2 = -1±i√3

or 6e^(i 2π/3) and 6e^(i 4π/3)

now the rest is easy...right?

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