document.write( "Question 1121304: Find all solutions of the equation in the interval [0, 2pi).
\n" ); document.write( "-4 cos x =-sin^2(x)+4
\n" ); document.write( "Write your answer in radians in terms of pi.
\n" ); document.write( "If there is more than one solution, separate them with commas.
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Algebra.Com's Answer #737125 by josgarithmetic(39620)\"\" \"About 
You can put this solution on YOUR website!
\"-4+cos+x+=-sin%5E2%28x%29%2B4\"\r
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\n" ); document.write( "\n" ); document.write( "\"-4cos%28x%29=-sin%5E2%28x%29%2B4\"\r
\n" ); document.write( "\n" ); document.write( "\"-4cos%28x%29=cos%5E2%28x%29-1%2B4\"\r
\n" ); document.write( "\n" ); document.write( "\"cos%5E2%28x%29%2B4cos%28x%29%2B3=0\"\r
\n" ); document.write( "\n" ); document.write( "\"%28cos%28x%29%2B1%29%28cos%28x%29%2B3%29=0\"\r
\n" ); document.write( "\n" ); document.write( "\"cos%28x%29=-1\"\r
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\n" ); document.write( "\n" ); document.write( "\"x=pi\"\r
\n" ); document.write( "\n" ); document.write( "(Check for mistakes)\r
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\n" ); document.write( "sin^2(x)+cos^2(x)=1
\n" ); document.write( "sin^2(x)=1-cos^2(x)
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