document.write( "Question 1158353: (2-i)^6\r
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document.write( "the āiā is the imaginary number\r
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document.write( "can someone please help?\r
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document.write( "this is my last problem for my homework on UMTYMP\r
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document.write( "thanks\r
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document.write( "UMTYMP: university of minnesota talented youth mathematics program \n" );
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Algebra.Com's Answer #781300 by greenestamps(13200)![]() ![]() You can put this solution on YOUR website! \n" ); document.write( "The solution from the other tutor uses several multiplications to arrive at the (correct) answer. \n" ); document.write( "My preference is to use binomial expansion: \r\n" ); document.write( "(1)(2^6) + (6)(2^5)(-i) + (15)(2^4)((-i)^2) + 20(2^3)((-i)^3) + 15(2^2)((-i)^4) + 6(2)((-i)^5) + (-i)^6\r\n" ); document.write( " 64 + (-192i) + (-240) + 160i + 60 + (-12i) + (-1)\r\n" ); document.write( "\r\n" ); document.write( "= -117 - 44i \n" ); document.write( " \n" ); document.write( " |