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Convert 4cis(5π/3) to rectangular form.

User Uniquelau
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1 Answer

10 votes

4 cis(5π/4) = 4 cis(-π/3)

… = 4 (cos(π/3) - i sin(π/3))

… = 4 (1/2 - i √3/2)

… = 2 - 2√3 i

User Wot
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