document.write( "Question 1075988: Can you please help me solve this equation: \"+sin%28x%2B1%29=cos%28x%29+\" with answers between 0 and 2pi? \n" ); document.write( "
Algebra.Com's Answer #690663 by ikleyn(52778)\"\" \"About 
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\n" ); document.write( "Can you please help me solve this equation: \"+sin%28x%2B1%29=cos%28x%29+\" with answers between 0 and 2pi?
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document.write( "sin(x+1) = cos(x)  <---->  \"sin%28x%2B1%29\" = \"sin%28pi%2F2+-+x%29\"  \r\n" );
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document.write( "This equation has TWO roots in the area of interest:\r\n" );
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document.write( "1)  x+1 = \"pi%2F2-x\"  ---->  2x = \"pi%2F2+-1\"  <---->  x = \"%281%2F2%29%2A%28pi%2F2-1%29\",\r\n" );
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document.write( "     and \r\n" );
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document.write( "2)  x+1 = \"pi%2F2-x+%2B+2%2Api\"  ---->  2x = \"pi%2F2+-1+%2B+2pi\"  <---->  x = \"%281%2F2%29%2A%28pi%2F2-1%29\" + \"pi%29\".\r\n" );
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\n" ); document.write( "\n" ); document.write( "Answer. The solutions are x = \"%281%2F2%29%2A%28pi%2F2-1%29\" and x = \"%281%2F2%29%2A%28pi%2F2-1%29\" + \"pi%29\".\r
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\n" ); document.write( "\n" ); document.write( "Plots y = sin(x+1) (red) and y = cos(x) (green)\r
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\n" ); document.write( "\n" ); document.write( "The plot shows two roots in the interval [0, 2pi).\r
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\n" ); document.write( "\n" ); document.write( "Solved.\r
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