document.write( "Question 631546: Please use a calculator to change 4e^(-0.88i) to rectangular form rounded to 2 decimal places. Thanks! \n" ); document.write( "
Algebra.Com's Answer #397692 by Edwin McCravy(20060)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "Use Euler's formula:\r\n" );
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document.write( "eiq = cosq + i·sinq\r\n" );
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document.write( "4e-0.88i = 4[cos(0.88) + i·sin(0.88)] = 4cos(0.88) + 4·sin(0.88)i =\r\n" );
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document.write( "2.548604577 + 3.082955516·i\r\n" );
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document.write( "which rounds to\r\n" );
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document.write( "2.55 + 3.08i\r\n" );
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document.write( "Edwin
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