document.write( "Question 390450: How do I solve the following question: cos square x - 2sinxcosx - sin square x = 0? \n" ); document.write( "
Algebra.Com's Answer #276831 by richard1234(7193)\"\" \"About 
You can put this solution on YOUR website!
The equation simplifies to\r
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\n" ); document.write( "\n" ); document.write( "\"cos+%282x%29+-+sin+%282x%29+=+0\"\r
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\n" ); document.write( "\n" ); document.write( "\"cos+%282x%29+=+sin+%282x%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"tan+%282x%29+=+1\"\r
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\n" ); document.write( "\n" ); document.write( "\"2x+=+pi%2F4\" or \"2x+=+5pi%2F4\"\r
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\n" ); document.write( "\n" ); document.write( "\"x+=+pi%2F8\" or \"x+=+5pi%2F8\"\r
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\n" ); document.write( "\n" ); document.write( "Note that we may add any integer multiple of \"pi\" to x, as 2x will be periodic with period \"2pi\".
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