document.write( "Question 286247: how do you find all possible solutiions of 3tanx * cosx = -5cosx? \n" ); document.write( "
Algebra.Com's Answer #207556 by user_dude2008(1862)\"\" \"About 
You can put this solution on YOUR website!
3tanx * cosx = -5cosx\r
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\n" ); document.write( "\n" ); document.write( "3tanx * cosx + 5cosx = 0\r
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\n" ); document.write( "\n" ); document.write( "cosx(3tanx + 5) = 0\r
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\n" ); document.write( "\n" ); document.write( "cosx = 0 or 3tanx + 5 = 0\r
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\n" ); document.write( "\n" ); document.write( "x = pi/2+2pi*n or x = -1.03037 + 2pi*n
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