document.write( "Question 310461: 2sin^2(2x)=1 \n" ); document.write( "

Algebra.Com's Answer #222048 by Fombitz(32388) $\"\"$ $\"About$

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$\"2sin%5E2%282x%29=1\"$
\n" ); document.write( " $\"sin%5E2%282x%29=1%2F2\"$
\n" ); document.write( " $\"sin%282x%29=0+%2B-+1%2Fsqrt%282%29\"$
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\n" ); document.write( " $\"sin%282x%29=sqrt%282%29%2F2\"$
\n" ); document.write( " $\"2x=45\"$ or $\"2x=135\"$
\n" ); document.write( " $\"x=22.5\"$ or $\"x=67.5\"$
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\n" ); document.write( " $\"sin%282x%29=-sqrt%282%29%2F2\"$
\n" ); document.write( " $\"2x=225\"$ or $\"2x=315\"$
\n" ); document.write( " $\"x=112.5\"$ or $\"x=157.5\"$
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\n" ); document.write( "(22.5,67.5,112.5,157.5) \n" ); document.write( "

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