Question

Express this in the a+ib form

(1/2+3i)³
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Answer 1

Answer:

(1/2+3i)^3

(1/2)^3+(3i)^3+3(1/2)(3i)(1/2+3i)

1/8+27i^3+9i/2(1/2+3i)

1/8 + 27i^3+9i/4+27i^3