document.write( "Question 1206981: How do I find the trigonometric form of \"6sqrt%286%29-i+\" in angles with two decimal places?\r
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Algebra.Com's Answer #844762 by ikleyn(52876)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "How do I find the trigonometric form of \"6sqrt%286%29-i+\" in angles with two decimal places?
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\n" ); document.write( "\n" ); document.write( "I want to exchange pleasantries with Edwin.\r
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\n" ); document.write( "\n" ); document.write( "In his post
\n" ); document.write( "https://www.algebra.com/algebra/homework/Trigonometry-basics/Trigonometry-basics.faq.question.1206982.html
\n" ); document.write( "Edwin completed the simplification which I omitted to carry out in my solution under that link.
\n" ); document.write( "Thanks to Edwin for this.\r
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\n" ); document.write( "\n" ); document.write( "Here I wish to correct the annoying typo made by Edwin in his post for the current problem.\r
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\n" ); document.write( "\n" ); document.write( "So, I copy here Edwin' solution and make the necessary corrections in it.\r
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document.write( "\"A+%2B+Bi\"\r\n" );
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document.write( "\"r=sqrt%28A%5E2%2BB%5E2%29\"\r\n" );
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document.write( "\"theta\"\"%22%22=%22%22\"\r\n" );
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document.write( "\"matrix%281%2C2%2Ctrig%2Cform%29\"\"%22%22=%22%22\"\"r%28cos%28theta%29%5E%22%22%2Bi%2Asin%28theta%29%29\"\r\n" );
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document.write( "\"6sqrt%286%29+-i+\", \"A=6sqrt%286%29\", \"B=-1\"   <<<---=== the correction is here: B= -1.\r\n" );
document.write( "                                       From here, I support this change to the end without noticing.\r\n" );
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document.write( "\"r=sqrt%28%286sqrt%286%29%29%5E2%2B1%5E2%29%7D%7D%0D%0A%7B%7B%7Br=sqrt%2836%286%29%2B1%29\"\r\n" );
document.write( "\"r=sqrt%28216%2B1%29\"\r\n" );
document.write( "\"r=sqrt%28217%29\"\r\n" );
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document.write( "\"theta\"\"%22%22=%22%22\"\r\n" );
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document.write( "The quadrant in QIV since A is positive, while B is negative.\r\n" );
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document.write( "In degrees:\r\n" );
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document.write( "\"theta\"\"%22%22=%22%22\"\"-3.892484484%5Eo\"\r\n" );
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document.write( "\"matrix%281%2C2%2Ctrig%2Cform%29\"\"%22%22=%22%22\"\"sqrt%28217%29%28cos%28-3.892484484%5Eo%29%5E%22%22%2Bi%2Asin%28-3.892484484%5Eo%29%29\" = \r\n" );
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document.write( "            \"%22%22=%22%22\"\"sqrt%28217%29%28cos%283.892484484%5Eo%29%5E%22%22-i%2Asin%283.892484484%5Eo%29%29\"\r\n" );
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document.write( "In radians:\r\n" );
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document.write( "\"theta\"\"%22%22=%22%22\"\"-0.0679366703\"\r\n" );
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document.write( "\"matrix%281%2C2%2Ctrig%2Cform%29\"\"%22%22=%22%22\"\"sqrt%28217%29%28cos%28-0.0679366703%29%5E%22%22%2Bi%2Asin%28-0.0679366703%29%29\"\r\n" );
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document.write( "           \"%22%22=%22%22\"\"sqrt%28217%29%28cos%280.0679366703%29%5E%22%22-i%2Asin%280.0679366703%29%29\".\r\n" );
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document.write( "Now round off as you were told.\r\n" );
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document.write( "ikleyn
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