document.write( "Question 775657: solve 2sinx+cosx=0 \n" ); document.write( "

Algebra.Com's Answer #473076 by Tatiana_Stebko(1539) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"2sinx%2Bcosx=0\"$ divide by $\"cosx\"$
\n" ); document.write( " $\"2sinx%2Fcosx%2B1=0\"$
\n" ); document.write( " $\"2tgx=-1\"$
\n" ); document.write( " $\"tgx=-1%2F2\"$
\n" ); document.write( " $\"x=-arctg%281%2F2%29%2Bpi%2Ak\"$ , k is an integer\r
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