document.write( "Question 868068: find all solutions in the following interval 0 degrees (less than or equal to) theta (less than) 360 degrees.
\n" ); document.write( " $\"+2sin%5E2%28theta%29-+sin%28theta%29=+1+\"$
\n" ); document.write( " \n" ); document.write( "

Algebra.Com's Answer #523331 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
Let $\"u=sin%28theta%29\"$
\n" ); document.write( " $\"2u%5E2-u=1\"$
\n" ); document.write( " $\"2u%5E2-u-1=0\"$
\n" ); document.write( " $\"%28u-1%29%282u%2B1%29=0\"$
\n" ); document.write( "Two \"u\" solutions:
\n" ); document.write( " $\"u-1=0\"$
\n" ); document.write( " $\"u=1\"$
\n" ); document.write( " $\"sin%28theta%29=1\"$
\n" ); document.write( " $\"theta=90\"$
\n" ); document.write( "and
\n" ); document.write( " $\"2u%2B1=0\"$
\n" ); document.write( " $\"2u=-1\"$
\n" ); document.write( " $\"u=-1%2F2\"$
\n" ); document.write( " $\"sin%28theta%29=-1%2F2\"$
\n" ); document.write( " $\"theta=210\"$ and $\"theta=330\"$ \n" ); document.write( "

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