document.write( "Question 973181: Express the following in regtangular form by using De Moivre's formulae?\r
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document.write( "Z = [3(cos 3pi/2 + jsin 3pi/2)]^3 \n" );
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Algebra.Com's Answer #595437 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! Express the following in regtangular form by using De Moivre's formulae?\r \n" ); document.write( "\n" ); document.write( "Z = [3(cos 3pi/2 + jsin 3pi/2)]^3 \n" ); document.write( "----------- \n" ); document.write( "Z = [3cis(3pi/2)]^3 \n" ); document.write( "Z = 3^3cis(9pi/2) = 27cis(pi/2) \n" ); document.write( "Z = 27cos(pi/2) + jsin(pi/2) \n" ); document.write( "Z = 0 + 27j \n" ); document.write( "Z = 27j \n" ); document.write( " |