Use DeMoivre’s Theorem to find the indicated power of the complex number .Write answer in rectangular form. (sqrt3-i)^6

midtlinjeg

midtlinjeg

Answered question

2020-12-17

Use DeMoivre’s Theorem to find the indicated power of the complex number .Write answer in rectangular form.
(3i)6

Answer & Explanation

comentezq

comentezq

Skilled2020-12-18Added 106 answers

The complex number can be written as,
(3i)=2(32i12)
(3i)=2(cos(π6)+isin(π6))
therefore, it can be represented as,
2(cos(π6)+isin(π6))=2ei(π6)
therefore,
(3i)6=[2ei(π6)]6=26eiπ=64eπ
Therefore ,the given complex number can be simplified further as,
(3i)6=64(cos(π)+isin(π))=64(1)+i0)=64(1)=64
Hence, the given complex number becomes −64.

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