document.write( "Question 970380: Find the value of tan2x on the interval (pi/2,pi) given that sin=(1/2) \n" ); document.write( "
Algebra.Com's Answer #593039 by lwsshak3(11628) ![]() You can put this solution on YOUR website! Find the value of tan2x on the interval (pi/2,pi) given that sin=(1/2) \n" ); document.write( "sinx=1/2 (Q2) \n" ); document.write( "cosx=-√3/2 \n" ); document.write( "sin2x=2sinxcosx=2*1/2*-√3/2=-√3/2 \n" ); document.write( "cos2x=cos^(x)-sin^2(x)=3/4-1/4=1/2 \n" ); document.write( "tan2x=sin2x/cos2x=-√3 \n" ); document.write( " |