document.write( "Question 1181371: (Cos theta + sin theta )(1-2sin theta)=0 \n" ); document.write( "

Algebra.Com's Answer #811279 by MathLover1(20850) $\"\"$ $\"About$

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\n" ); document.write( "\n" ); document.write( " $\"%28cos%28theta+%29%2B+sin%28+theta%29+%29%281-2sin+%28theta%29%29=0\"$ \r
\n" ); document.write( "\n" ); document.write( "if $\"cos%28theta+%29%2B+sin%28+theta%29+=0\"$ \r
\n" ); document.write( "\n" ); document.write( " => $\"cos%28theta+%29=-+sin%28+theta%29++\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"theta++=3pi%2F4%2Bpi%2An\"$ , $\"n+\"$ element $\"Z\"$ \r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "if $\"1-2sin+%28theta%29=0\"$
\n" ); document.write( "=> $\"1=2sin+%28theta%29\"$
\n" ); document.write( "=> $\"1%2F2=sin+%28theta%29\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"theta=sin%5E-1+%281%2F2%29\"$
\n" ); document.write( " $\"theta=pi%2F6\"$ \r
\n" ); document.write( "\n" ); document.write( "combine solutions\r
\n" ); document.write( "\n" ); document.write( "radians:
\n" ); document.write( " $\"theta=3pi%2F4%2Bpi%2An\"$
\n" ); document.write( " $\"theta=pi%2F6%2B2pi%2An\"$
\n" ); document.write( " $\"theta=5pi%2F6%2B2pi%2An\"$ \r
\n" ); document.write( "\n" ); document.write( "Degrees:
\n" ); document.write( " $\"theta=135%2B180%2An\"$
\n" ); document.write( " $\"theta=30%2B360%2An\"$
\n" ); document.write( " $\"theta=150%2B360%2An+\"$ \r
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\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

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