document.write( "Question 819402: Given tanx= and sinx<0, find the values of sinx and cosx.\r
\n" );
document.write( "\n" );
document.write( "With this information, I would think that it is located in quadrant IV, but the answer shows that it is located in quadrant III. \n" );
document.write( "
Algebra.Com's Answer #493219 by lwsshak3(11628) ![]() You can put this solution on YOUR website! Given tanx= \n" ); document.write( "Reference angle is in quadrant III where sin<0, cos<0, tan>0 \n" ); document.write( "hypotenuse of reference right triangle=√((√33)^2+(4^2))=√(33+16)=√49=7 \n" ); document.write( "sinx=-√33/7 \n" ); document.write( "cosx=-4/7 \n" ); document.write( " |