document.write( "Question 1032959: Use the given information to determine the tract trigonometric value.
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document.write( "sec(theta)=-7/5, 90 < theta < 180 ; sin(theta) \n" );
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Algebra.Com's Answer #647564 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Use the given information to determine the exact trigonometric value. \n" ); document.write( "sec(theta)=-7/5, 90 < theta < 180 ; \n" ); document.write( "--- \n" ); document.write( "sec = r/x, so r = 7 and x = -5 \n" ); document.write( "---- \n" ); document.write( "Since theta is in QII, y is positive:: \n" ); document.write( "y = sqrt[7^2 - 5^2] = sqrt(24) = 2sqrt(6) \n" ); document.write( "------------------------------------- \n" ); document.write( "Ans:: sin(theta) = y/r = 2sqrt(6)/7 \n" ); document.write( "-------------------- \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "-------------- \n" ); document.write( " |