Power of a Complex Number...3

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Section 6.6

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MSP70451cf944b59i9003gf0000476c9iia89gd4655


Apply Perfect Cube Formula: (a-b )^3=a^3-3a^2b+3ab^2-b^3 for the
MSP37382006a6cad4h3982i0000245f0h6i0e1i05fd
where \(a=1\) and \(b=sqrt(3)*i\)

=\(4(1^3-3*1^2*sqrt(3)*i+3*1(sqrt(3)*i)^2-(sqrt(3)*i)^3\)........simplify

=\(4(-8)\)

=\(-32\)
 
MSP70451cf944b59i9003gf0000476c9iia89gd4655


Apply Perfect Cube Formula: (a-b )^3=a^3-3a^2b+3ab^2-b^3 for the
MSP37382006a6cad4h3982i0000245f0h6i0e1i05fd
where \(a=1\) and \(b=sqrt(3)*i\)

=\(4(1^3-3*1^2*sqrt(3)*i+3*1(sqrt(3)*i)^2-(sqrt(3)*i)^3\)........simplify

=\(4(-8)\)

=\(-32\)

I can't get one single question right. Sad.
 

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