document.write( "Question 1189939: DOUBLE ANGLE IDENTITIES
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document.write( "1. Use the double angle identities to find the exact value of sine, cosine, tangent function if sinA = -(12/13) and A lies in Quadrant III. (Show full solution)\r
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Algebra.Com's Answer #821504 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! Use the double angle identities to find the exact value of sine, cosine, tangent function if sinA = -(12/13) and A lies in Quadrant III \n" ); document.write( "----------------------- \n" ); document.write( " \n" ); document.write( "cos(a) = -5/13 (negative in Q3) \n" ); document.write( "------------------ \n" ); document.write( "tan = sin/cos = 12/5 (positive in Q3) \n" ); document.write( "============================ \n" ); document.write( "No double angles involved.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |