document.write( "Question 1206427: Any help would be much appreciated in figure out this problem. What are all the solutions in the equation tan^2 x + tanx=0 in the interval [0,2pi).
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Algebra.Com's Answer #843904 by ikleyn(52798)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "Actually, tan(x) has a basic period from 0 to \"pi\".\r\n" );
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document.write( "The interval from 0 to \"2pi\"  is TWO basic periods of tan(x).\r\n" );
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document.write( "Therefore, to simplify the problem, you could find the solutions to the given equation in the interval [0,\"pi\") first,\r\n" );
document.write( "and then to extend (to translate) the roots from this interval [0,\"pi\") to one interval forward.\r\n" );
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document.write( "In the basic interval [0,\"pi\"), the roots are 0 and \"3pi%2F4\".\r\n" );
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document.write( "After moving forward one period, two other roots are added to the set of solutions,  \"pi\"  and  \"7pi%2F4\".\r\n" );
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\n" ); document.write( "\n" ); document.write( "Generally speaking,  in  Math it is not a good practice / (is not a good style)
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\n" ); document.write( "\n" ); document.write( "                f(x) = 0, \r
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\n" ); document.write( "\n" ); document.write( "where  f(x)  is periodical function with the period  T,  in two-period interval  [0,2T).\r
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\n" ); document.write( "\n" ); document.write( "It is not a good style.\r
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\n" ); document.write( "\n" ); document.write( "Such questions,  as a rule,  go about one single period interval  [0,T).\r
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\n" ); document.write( "\n" ); document.write( "Otherwise,  questions about mathematical competence of the author may arise.\r
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