document.write( "Question 1067907: Can somebody help me use the half angle formula to simplify the expression of sin4θ/1 + cos 4θ? The slash indicates a fraction. \r
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Algebra.Com's Answer #683106 by ikleyn(52780)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "help me use the half angle formula to simplify the expression of sin4θ/1 + cos 4θ? The slash indicates a fraction.
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document.write( "The numerator \"sin%284theta%29\" = \"2%2Asin%282theta%29%2Acos%282theta%29\".\r\n" );
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document.write( "The denominator \"1%2Bcos%284theta%29\" = \"2%2Acos%5E2%282theta%29\"    (the half angle formula for cosine)\r\n" );
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document.write( "Therefore, the ratio  \"sin%284theta%29%2F%281%2Bcos%284theta%29%29\" = \"sin%282theta%29%2Fcos%282theta%29\" = \"tan%282theta%29\".\r\n" );
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\n" ); document.write( "\n" ); document.write( "Solved.\r
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