document.write( "Question 771399: 14. What is the sign of sin, cos and tan in the second and fourth quadrants?
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Algebra.Com's Answer #470192 by Alan3354(69443) You can put this solution on YOUR website! 14. What is the sign of sin, cos and tan in the second and fourth quadrants? \n" ); document.write( "----------- \n" ); document.write( "sin is + + - - \n" ); document.write( "cos is + - - + \n" ); document.write( "tan is + - + - \n" ); document.write( "----------- \n" ); document.write( "Don't memorize them, use the unit circle. \n" ); document.write( " |