document.write( "Question 421006: True or False: sin(-85)=-sin(85)\r
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document.write( "I need to show my work, how do I do so? \n" );
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Algebra.Com's Answer #294036 by josmiceli(19441)![]() ![]() You can put this solution on YOUR website! Just draw a picture of the 4 quadrants. 85 degrees is \n" ); document.write( "in the 1st quadrant. -85 degrees is in the 4th quadrant. \n" ); document.write( "Show that opposite/hypotenuse is (+) for 85 anf \n" ); document.write( "(-) for -85 \n" ); document.write( " |