document.write( "Question 979237: write the expression in terms of sine only\r
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Algebra.Com's Answer #600514 by ikleyn(52797)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( "\"3%2Asin%28pi%2AX%29\" + \"3%2Asqrt3%2Acos%28pi%2AX%29\" = \"3%2A2\".\"%28%281%2F2%29%2Asin%28pi%2AX%29+%2B+%28sqrt%283%29%2F2%29%2Acos%28pi%2AX%29%29\" = \"6\".\"%28sin%28pi%2F6%29%2Asin%28pi%2AX%29+%2B+cos%28pi%2F6%29%2Acos%28pi%2AX%29%29\" = \"6\".\"sin%28pi%2F6+%2B+pi%2AX%29\" = \"6\".\"sin%28pi%2A%281%2F6+%2B+X%29%29\". \r
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\n" ); document.write( "\n" ); document.write( "We used here the addition formula for sines \r
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\n" ); document.write( "\n" ); document.write( "\"sin%28alpha+%2B+beta%29\" = \"sin%28alpha%29%2Asin%28beta%29+%2B+cos%28alpha%29%2Acos%28beta%29\"\r
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\n" ); document.write( "\n" ); document.write( "of  Trigonometry  (see,  for example,  the lesson  Addition and subtraction formulas  in this site),  and the facts that\r
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\n" ); document.write( "\n" ); document.write( "\"cos%28pi%2F6%29\" = cos(30°) = \"sqrt%283%29%2F2\"   and   \"sin%28pi%2F6%29\" = sin(30°) = \"1%2F2\". \r
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