document.write( "Question 912506: the trigonometric form of number z = 10 - 10 sqrt3i is?\r
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document.write( "a) z=20(cos 3,14/3 + i.sen 3,14/3)\r
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document.write( "b) z=15(cos 5*3,14/3 - i.sen 4*3,14/3)\r
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document.write( "c) z=20(cos 5*3,14/3 + i.sen 5*3,14/3)\r
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document.write( "d) z=20(cos 3,14/3 - i.sen 3,14/3) \n" );
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Algebra.Com's Answer #554205 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! the trigonometric form of number z = 10 - 10 sqrt3i is? \n" ); document.write( "----- \n" ); document.write( "r = sqrt[10^2 + (10sqrt(3))^2] = sqrt[100 + 300] = 20 \n" ); document.write( "theta = arctan(-10sqrt(3)/10) = arctan(-sqrt(3)) = (5pi/3) \n" ); document.write( "----- \n" ); document.write( "z = 20[cos(5pi/3) + i*sin(5pi/3)) \n" ); document.write( "------------------ \n" ); document.write( "Ans: c \n" ); document.write( "------------- \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "=================== \n" ); document.write( "a) z=20(cos 3,14/3 + i.sen 3,14/3) \n" ); document.write( "b) z=15(cos 5*3,14/3 - i.sen 4*3,14/3) \n" ); document.write( "c) z=20(cos 5*3,14/3 + i.sen 5*3,14/3) \n" ); document.write( "d) z=20(cos 3,14/3 - i.sen 3,14/3) \n" ); document.write( " |