GriselBuonomo128 GriselBuonomo128

13-06-2015
Mathematics

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Write each expression in the standard form for a complex number, a + bi. a. [3(cos(27°)) + isin(27°)]^5 b. [2(cos(40°)) + isin(40°)]^6

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tamano2017 tamano2017

13-06-2015

To write each in the a+bi form, you'd just multiply out; for example, on part a., you would do 3•cos72º+isin27º•3, which would get 2.67+1.36i. B. would be 1.53+1.29i.

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