document.write( "Question 894379: Find all theta in the interval [0,2pi) that satisfy the equation.\r
\n" ); document.write( "\n" ); document.write( "sin 2theta = 1/ sqrt 2
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Algebra.Com's Answer #541994 by josmiceli(19441)\"\" \"About 
You can put this solution on YOUR website!
I'll say \"+alpha+=+2%2Atheta+\"
\n" ); document.write( "\"+sin+%28+alpha+%29+=+1%2Fsqrt%282%29+\"
\n" ); document.write( "\"+alpha+=+pi%2F4+\"
\n" ); document.write( "also
\n" ); document.write( "\"+alpha+=+%283%2Api%29%2F4+\"
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\n" ); document.write( "sin functions in the 3rd and 4th quadrants are
\n" ); document.write( "negative, so I can't include these
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\n" ); document.write( "Now I can say:
\n" ); document.write( "\"+2%2Atheta+=+alpha+\"
\n" ); document.write( "\"+theta+=+alpha%2F2+\"
\n" ); document.write( "\"+theta+=+%28+pi%2F4+%29+%2F+2+\"
\n" ); document.write( "\"+theta+=+pi%2F8+\"
\n" ); document.write( "and
\n" ); document.write( "\"+theta+=+%28%28+3%2Api+%29%2F4+%29+%2F+2+\"
\n" ); document.write( "\"+theta++=+%28+3%2Api+%29%2F8+\"
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