Algebra.Com's Answer #275004 by Edwin McCravy(20056)![\"\"](\"/images/stars/stars-13.gif\")  
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document.write( "In the interval 0° ≤ θ ≤ 360°, how many values of θ satisfy the equation
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document.write( "a)1
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document.write( "b)2
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document.write( "c)3
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document.write( "d)4
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document.write( "Factor the left side:\r\n" );
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document.write( "Use the zero-factor principle:\r\n" );
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document.write( "Since the tangent is positive in the first and third quadrants,\r\n" );
document.write( "there are two angles between 0° and 360° that have 2 as their \r\n" );
document.write( "tangent. These are 63.43° and 243.43° approximately\r\n" );
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document.write( "Continuing with the zero-factor principle:\r\n" );
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document.write( "Again, since the tangent is positive in the first and third quadrants,\r\n" );
document.write( "there are two angles between 0° and 360° that have 1 as their \r\n" );
document.write( "tangent. These are 45° and 225° exactly.\r\n" );
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document.write( "So the answer is d)4\r\n" );
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document.write( "Edwin \n" );
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