document.write( "Question 974495: Please help me solve w/work ASAP: If sin(A)=17/45 with pi/2 < A < pi and tan(B)=-105/88 with 3pi/2 < B < 2pi, then what is the exact value of sin(A+B)? \n" ); document.write( "
Algebra.Com's Answer #596406 by Alan3354(69443) You can put this solution on YOUR website! Please help me solve w/work ASAP: If sin(A)=17/45 with pi/2 < A < pi and tan(B)=-105/88 with 3pi/2 < B < 2pi, then what is the exact value of sin(A+B)? \n" ); document.write( "--------------- \n" ); document.write( "sin(A)=17/45 with pi/2 < A < pi --> Q2 \n" ); document.write( "Find the cos(A): \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "---------------- \n" ); document.write( "tan(B)=-105/88 with 3pi/2 < B < 2pi --> Q4 \n" ); document.write( "Find sine & cosine of B \n" ); document.write( "----- \n" ); document.write( "tan(B) = y/x \n" ); document.write( " \n" ); document.write( "sin(B) = y/r = -105/137 \n" ); document.write( "cos(B) = x/r = 88/137 \n" ); document.write( "--------------- \n" ); document.write( "sin(A + B) = sin(A)cos(B) + sin(B)cos(A) \n" ); document.write( "= \n" ); document.write( "= \n" ); document.write( "= \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |