document.write( "Question 70757: I need to find the solution for d. 300=50/sin(d/2) \n" ); document.write( "
Algebra.Com's Answer #50515 by bucky(2189) ![]() You can put this solution on YOUR website! \n" ); document.write( ". \n" ); document.write( "Replace d/2 by A for the time being to get: \n" ); document.write( ". \n" ); document.write( " \n" ); document.write( ". \n" ); document.write( "Multiply both sides by sin(A) to get: \n" ); document.write( ". \n" ); document.write( " \n" ); document.write( ". \n" ); document.write( "Replace the sin(A)/sin(A) by 1. As a result the equation is: \n" ); document.write( ". \n" ); document.write( " \n" ); document.write( ". \n" ); document.write( "Divide both sides by 300 and get: \n" ); document.write( ". \n" ); document.write( " \n" ); document.write( ". \n" ); document.write( "Now by taking the arcsin(A) = 1/6 on a calculator you find that A = 9.5941 degrees. \n" ); document.write( "But before we had decided that \n" ); document.write( "degrees for A we get that d = 9.5941*2 = 19.0982 degrees. \n" ); document.write( ". \n" ); document.write( "This is a principal solution. It can be converted to radians by multiplying 19.0982 \n" ); document.write( "degrees by \n" ); document.write( ". \n" ); document.write( "Don't forget that sin(A) is also positive in the second quadrant. Therefore, the angle \n" ); document.write( "170.4059 degrees is also a possible solution for A in sin(A) = 1/6. And since \n" ); document.write( "we can write 170.4059 degrees = d/2. Solving for d we get 340.8118 degrees. \n" ); document.write( ". \n" ); document.write( "Again these answers in degrees can be converted to radians by multiplying by \n" ); document.write( ". \n" ); document.write( "Hopefully this gives you a clue as to how to work this problem. \n" ); document.write( " |