document.write( "Question 812336: SIN A =-2/7 AND A IS LIE ON QUADRANT III..
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document.write( "WHAT IS THE VALUE OF TAN A??? \n" );
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Algebra.Com's Answer #489196 by stanbon(75887) ![]() You can put this solution on YOUR website! SIN A =-2/7 AND A IS LIE ON QUADRANT III.. \n" ); document.write( "WHAT IS THE VALUE OF TAN A??? \n" ); document.write( "----- \n" ); document.write( "Note: In QIII, x is negative and y is negative \n" ); document.write( "----------- \n" ); document.write( "Since sin = y/r, y = -2 and r = 7 \n" ); document.write( "So, x = -sqrt[7^2-2^2] = -sqrt(45) = -(3)sqrt(5)\r \n" ); document.write( "\n" ); document.write( "----- \n" ); document.write( "Your Problem: \n" ); document.write( "tan = y/x \n" ); document.write( "So tan(A) = [-2]/[-(3)sqrt(5)] = (2/3)sqrt(5)/5 = (2/15)sqrt(5) \n" ); document.write( "================ \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "============== \n" ); document.write( " \n" ); document.write( " |