Algebra.Com's Answer #779303 by ikleyn(52803)![\"\"](\"/images/stars/stars-13.gif\")  
You can put this solution on YOUR website!
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document.write( " I will show you TRULY elegant method of solution . . . \r
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document.write( "  -  = 1.\r\n" );
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document.write( "Multiply both sides by  .\r\n" );
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document.write( "  -  = .\r\n" );
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document.write( "It can be written in this form\r\n" );
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document.write( "  -  =  .\r\n" );
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document.write( "Use the formula of adding arguments for sine\r\n" );
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document.write( "  =  .\r\n" );
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document.write( "It may happen in one of the two cases\r\n" );
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document.write( "Case 1.  =  .\r\n" );
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document.write( " which implies  = 0,\r\n" );
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document.write( "or\r\n" );
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document.write( "Case 2. =  - ,\r\n" );
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document.write( " which implies =  =  = - .\r\n" );
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document.write( " Since we consider the angles in the interval [0,2pi), it is equivalent to =  .\r\n" );
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document.write( "So, we get the ANSWER : The given equation has two solutions in the interval [0,2pi)\r\n" );
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document.write( " a) = 0, and b) = .\r\n" );
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document.write( "Solved.\r
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document.write( "@greenestamps, double check your answer: it DOES NOT correspond to your plot (and should be corrected (!) )\r
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